LNEXT-SYS-DESC-0016 Rev A LNext Geometric Error Budget (GEB) 20230426.pdf

Approval Date in

TDMS

Date

Approval Date in

TDMS

Date

Approval Date in

TDMS

Date

Evan Webb

Landsat Next Geometric Error Budget Signature/Approval Page

Prepared by:

Electronic Signature in TDMS Angela Russo Landsat Next Deputy Mission System Engineer NASA/GSFC, Code 599

Approved by:

Electronic Signature in TDMS

NASA/GSFC, Code 426

Landsat Next Systems Manager NASA/GSFC, Code 599

Approved by:

Electronic Signature in TDMS James Pontius Landsat Next Project Manager

CM FOREWORD

This document is a Landsat Next Project Configuration Management (CM)-controlled document.

Changes to this document require prior approval of the applicable Configuration Control Board (CCB) Chairperson or designee. Proposed changes shall be submitted to the Landsat Next CM Office (CMO), along with supportive material justifying the proposed change. Changes to this document will be made by complete revision.

Questions or comments concerning this document should be addressed to:

NASA/Goddard Space Flight Center Landsat Next Project Office, Code 426 Attention: Configuration Management Office Greenbelt, Maryland 20771

Revision Change Request Number

- LNEXT-CCR-0017

A LNEXT-CCR-0056

Description of Change Release Date Initial Release 12/05/22 Tables and error trees in the GEB budget/allocation excel file, and associated PPT companion file were updated to reflect “relative knowledge” terminology and to define the orbit period as a “98-minute” time span. This content was discussed, vetted, and finalized during the 3/1/2023 Pointing Jitter Alignment Working Group Meeting.

04/26/23

CHANGE HISTORY LOG

Pointing 3 sigma

Allocation Units Sca e to Ground Un ts LE90 CE90 Source

L9 MCDR

Est mate

L9 On Orbit Est ma e Owner

L9 Her tage Requirement

LNext Requirement Source Rationale End to End Geometr c Performance Lnext Level 3

LNext Requirement

Abs Geodetic

LaRD 1078 Geometric LaRD 1082

VSWIR

B2B

LaRD 1073

VSW R IR

B2B

LaRD 1073 I2I

LaRD 1075 Rel Geodetic

LaRD 1080 Absolute pointing 20 urad 13. meters 7.3 9.6 LNext SC SOW 22 6 18 7 Spacecraft IRD-326 LN SRD- 25 Requirement Prediction Units Level 3 Units Requirement LN SRD 425 x x Pointing over 30 seconds (1 scene) 2 urad 1.3 meters 0.7 1.0 L9 S/C CDR 1. 6 1.59 Spacecraft IRD-328 LN SRD- 28 S/C ACS Performance Pred ct on Geodet c Accuracy - VSWIR 1 .8 me ers 30.0 meters CE90 LaRD-1078 CE90 LN_SRD 428 x x x Pointing over 15 seconds (max band delay a lowed) 1.5 urad 1.0 meters 0.6 0.7 L9 S/C CDR 0.3 3 0.3 3 Spacecraft IRD-329 LN SRD- 29 S/C ACS Performance Pred ct on Geodet c Accuracy - T R 17.7 me ers 30.0 meters CE90 LaRD-1078 CE90 LN SRD 429 x x Ephemeris / iming Geometric Accuracy (L1TP) 5.8 me ers 8.0 meters CE90 LaRD-1082 CE90 LN SRD 422 x x Ephemeris knowledge 10 meters 9.0 meters 5.0 6.5 LNext SC SOW 2.5 2.5 Spacecraft IRD-320 LN SRD- 22 Band Registra ion - VSWIR - 10m 2.0 me ers 2.0 meters LE90 LaRD-1073 LE90 LN SRD 423 x x x Veloc ty knowledge 0.2 m/sec 0.18 m/sec 0.10 0.13 LNext SC SOW 0.0061 0 0061 Spacecraft IRD-321 LN SRD- 23 Band Registra ion - VSWIR - 20m 2. me ers 3.0 meters LE90 LaRD-1073 LE90 LN SRD 421 x x x Absolute iming knowledge 0.025 msec 0.17 meters 0.09 0.12 LNext SC SOW 0.01322 0.01322 Spacecraft IRD-319 LN SRD- 21 Band Registra ion - VSWIR - 60m 5.0 me ers 6.0 meters LE90 LaRD-1073 LE90 LIRD 299 x x x x Instrument c ock uncertainty (VSWIR) 0.025 msec 0.17 meters 0.1 0.1 OLI-2 CDR 0.023 0.023 Instrument OLI-121 LaRD-1216 Band Registra ion - T R 5.6 me ers 6.0 meters LE90 LaRD-1073 LE90 LIRD 301 x Instrument c ock uncertainty (TIR) 0.025 msec 0.17 meters 0.1 0.1 TIRS-2 CDR 1.0 1.0 Instrument TIRS-563 LaRD-1216 Ref ective o Thermal Band Registra ion 9.3 me ers 15.0 meters LE90 LaRD-1073 LE90 SCIRD 271 x x x x x x Time ag uncertainty (VSWIR) 0.025 msec 0.17 meters 0.09 0.12 OLI-2 CDR 0.023 0.023 Instrument OLI-121 LaRD-3 23 Image Registra ion - VSWIR 3.1 me ers 5.0 meters LE90 LaRD-1075 LE90 LaRD 2968 x x x x x x Time ag uncertainty (TIR) 0.025 msec 0.17 meters 0.09 0.12 OLI-2 CDR 0.023 0.023 Instrument OLI-121 LaRD-3 23 Relative Geodet c Accuracy - VSWIR 5.0 me ers 9.0 meters CE90 LaRD-1080 CE90 LaRD 2970 x x On orbit Stabil ty / Knowledge LaRD 2971 x VSWIR Alignment stab lity (98 minutes) 12 urad 8.0 meters . 5.7 L9 S/C CDR 1 .8 12. Instrument IRD- 5 LIRD-301 VSW R mount to star tracker (ST on inst deck) Notes: LaRD 2975 x VSWIR Alignment stab lity (30 seconds) 1 urad 0.7 meters 0. 0.5 L9 S/C CDR 1.02 1.06 Instrument IRD- 53 LIRD-299 VSW R mount to star tracker (ST on inst deck) 1. Started w th the spacecraft knowledge and al gnment speci icat ons from the original LNext Spacecraft Study SOW. LaRD 1216 x x x x x x TIR to VSWIR a ignment stabi ity (98 minutes) urad 2.7 meters 1.5 1.9 L9 S/C CDR 3.72 3.71 Instrument IRD- 55 Al ocat on VSW R mount to TIR mount - LandIS internal JIt er and w thin-orbit LOS stab l ty were ightened to meet the band-to-band requirement. LaRD 3423 x x x x x x VSWIR LOS re ative knowledge (98 minutes) 2. urad 1.6 meters 0.9 1.1 LNext SC SOW 2.295 3.98 Instrument OLI-1113 LaRD-2968 Focal p ane to Bores ght (SOW was 5 urad) 2. Added knowledge, stab lity, and calibrat on requirements/al ocat ons needed to bui d end-to-end performance budgets.

VSWIR bores ght relative knowledge (98 minutes) 8 urad 5. meters 2.9 3.8 OLI-2 CDR 7.665 7.57 Instrument OLI-1115 LaRD-2970 Bores ght to Mount Based upon L9 prelaunch best estima es from instrument and spacecraft vendors (L9 MCDR Estimate column), which VSWIR bores ght relative knowledge (30 seconds) 1.5 urad 1.0 meters 0.6 0.7 OLI-2 CDR 1.8 8 2.78 Instrument Allocation Al ocat on Bores ght to Mount were subsequently refined by compar son to obse ved on-orbit performance (L9 On-Orbit Estimate column).

VSWIR bores ght rel. knowledge (max band delay) 1 urad 0.7 meters 0. 0.5 OLI-2 CDR 0.333 0.332 Instrument Allocation Al ocat on Bores ght to Mount 3. Band registrat on for the 10m bands s a driving requirement.

TIR LF LOS elative knowledge (98 minu es) 16 urad 10.7 meters 5.9 7.7 TIRS-2 CDR 21 20 8 Instrument TIRS-559 LaRD-2971 Low frequency (STOP) . Thermal band registrat on requirement s also t ght.

TIR HF LOS re ative know edge (30 seconds) 8 urad 5. meters 2.9 3.8 L9 S/C CDR 5.80 5.93 Instrument TIRS-559 LaRD-2975 Spacecraft to T RS-2 LOS jit er 5. Other end to-end geometric requi ements are not as stressing.

Spacecra t J tter (to VSWIR LOS) 1.80 urad 1.2 meters 0.7 0.9 LNext SC SOW 0.518 0.515 Spacecraft RD 3001 SCIRD-271 Spacecraft to OLI-2 LOS itter (SOW was 2 urad) 6. No margin s included as th s exercise s intended to demonstrate that the requirements are cons s ent, not to serve as Calibration a first draft des gn budget. Detailed vendor documentat on will include design margin on the component requiremen s.

LOS know edge focal plane-to-bo esight (VSW R) 3 urad 2.0 meters 1.1 1. L9 MCDR 3 2.87 Calibrat on Allocation Al ocat on 7. (New) Changed 2.5 second pointing spec ficat on to 15 seconds based on expected maximum band-to-band delay.

LOS know edge w thin focal p ane (VSW R) 1.5 urad 1.0 meters 0.6 0.7 L9 MCDR 1 1.15 Calibrat on Allocation Al ocat on LOS o edge (TIR to VSW R) 10 ad 6 7 ete s 3 7 8 LNe t SC SOW 0 22 6 Cali at o llocatio l ocat o LOS know edge (TIR to TIR) 9 urad 6.0 meters 3.3 .3 L9 MCDR 12 9.5 Calibrat on Allocation Al ocat on Alignment knowledge (VSWIR to star tracker) 9 urad 6.0 meters 3.3 .3 L9 MCDR 9 8.7 Calibrat on Allocation Al ocat on

Me hodology

5. Compa e to the co espond ng Level-2 and/o Level-3 equ ement.

The end-to-end equ ements come f om the Level-2 (SMRD) and Level-3 (LandIS) equ ements, and the spacec aft/ nst ument/g ound system cont buto s we e collected f om the LNext SOW (shown n ed text) and f om L8/L9 est mates of actual pe fo mance.

The method used was

1. Fo each end-to-end pe fo mance cha acte st c, dete m ne wh ch spacec aft/ nst ument/g ound system cont buto s apply and how (e.g., once, once pe band, once pe scene).

2. Rescale the 3-s gma cont buto s to 90% l nea e o (LE90) o 90% c cula e o (CE90), as app op ate fo the end-to-end equ ement, and scale to g ound mete s based upon the LNext o b tal geomet y.

3. Include add t onal (usually sma l) allocat ons fo te a n knowledge effects, g ound cont ol/ eg st at on accu acy, and algo thm/model ng e o , as app op ate to the nd v dual end-to-end equ ement.

4. Ro l-up the escaled cont buto s, usua ly by oot-sum-squa e but n a few nstances (e.g., al gnment stab l ty) by summ ng, to calculate p ed cted end-to-end pe fo mance.

Geodetic Accuracy - VSWIR Allocation Spacecraft 3-sigma Units CE90 Units Notes Requirement Absolute pointing 20 urad 9.57 meters LN_SRD-425 Ephemeris knowledge 10 meters 6.47 meters LN_SRD-422 Absolute timing knowledge 0.025 msec 0.12 meters LN_SRD-421 Spacecraft Jitter (to VSWIR LOS) 1.80 urad 0.86 meters SCIRD-271 Spacecraft Roll-Up 11.59 meters Instrument Instrument clock uncertainty (VSWIR) 0.025 msec 0.12 meters LaRD-1216 Time tag uncertainty (VSWIR) 0.025 msec 0.12 meters LaRD-3423 VSWIR Alignment stability (98 minutes) 12 urad 5.74 meters LIRD-301 VSWIR boresight relative knowledge (98 minutes) 8 urad 3.83 meters LaRD-2970 VSWIR LOS relative knowledge (98 minutes) 2.4 urad 1.15 meters LaRD-2968 Instrument Roll-Up 7.00 meters Ground Segment LOS knowledge focal plane-to-boresight (VSWIR) 3 urad 1.44 meters Calibration Allocation Alignment knowledge (VSWIR to star tracker) 9 urad 4.31 meters Calibration Allocation Band registration (20m VSWIR) 5.5 meters 3.91 meters LaRD-1073 Modeling budget 0.3 meters 0.21 meters Algorithms Allocation Ground Segment Roll-Up 6.00 meters Combined Roll-Up 14.8 meters Prediction Lnext Level-3 Requirement 30.0 meters LaRD-1078

Geodetic Accuracy - TIR Allocation Spacecraft 3-sigma Units CE90 Units Notes Requirement Absolute pointing 20 urad 9.57 meters LN_SRD-425 Absolute timing knowledge 0.025 msec 0.12 meters LN_SRD-421 Ephemeris knowledge 10 meters 6.47 meters LN_SRD-422 Spacecraft Roll-Up 11.56 meters Instrument Instrument clock uncertainty (TIR) 0.025 msec 0.12 meters LaRD-1216 Time tag uncertainty (TIR) 0.025 msec 0.12 meters LaRD-3423 TIR to VSWIR alignment stability (98 minutes) 4 urad 1.91 meters Allocation TIR LF LOS relative knowledge (98 minutes) 16 urad 7.66 meters LaRD-2971 TIR HF LOS relative knowledge (30 seconds) 8 urad 3.83 meters LaRD-2975 Instrument Roll-Up 8.78 meters Ground Segment LOS knowledge (TIR to VSWIR) 10 urad 4.79 meters Calibration Allocation Alignment knowledge (VSWIR to star tracker) 9 urad 4.31 meters Calibration Allocation Band registration (TIR) 10.9 meters 7.83 meters LaRD-1073 Modeling budget 0.3 meters 0.16 meters Algorithms Allocation Ground Segment Roll-Up 10.14 meters Combined Roll-Up 17.7 meters Prediction Lnext Level-3 Requirement 30.0 meters LaRD-1078

Geometric Accuracy (L1TP) Allocation Spacecraft 3-sigma Units CE90 Units Notes Requirement Pointing over 30 seconds (1 scene) 2 urad 0.96 meters LN_SRD-428 Spacecraft Jitter (to VSWIR LOS) 1.80 urad 0.86 meters SCIRD-271 Spacecraft Roll-Up 1.29 meters Instrument Instrument clock uncertainty (VSWIR) 0.025 msec 0.12 meters LaRD-1216 Time tag uncertainty (VSWIR) 0.025 msec 0.12 meters LaRD-3423 VSWIR Alignment stability (30 seconds) 1 urad 0.48 meters LIRD-299 VSWIR boresight relative knowledge (30 seconds) 1.5 urad 0.72 meters Allocation VSWIR LOS relative knowledge (98 minutes) 2.4 urad 1.15 meters LaRD-2968 Instrument Roll-Up 1.68 meters Ground LOS knowledge focal plane-to-boresight (VSWIR) 3 urad 1.44 meters Calibration Allocation Terrain error 11 meters 1.07 meters Edge of 14-deg FOV ESA DEM 6m LE90 Modeling budget 0.3 meters 0.21 meters Algorithms Allocation Band registration (20m VSWIR) 5.5 meters 3.91 meters LaRD-1073 Precision correction (GCP) budget 4.5 meters 3.22 meters Allocation Ground Roll-Up 5.38 meters Combined Roll-Up 5.8 meters Prediction LNext Level-3 Requirement 8.0 meters LaRD-1082

Band Registration - VSWIR - 10m Allocation Spacecraft 3-sigma Units LE90 Units Notes Requirement Pointing over 15 seconds (max band delay allowed) 1.50 urad 0.55 meters LN_SRD-429 Velocity knowledge 0.2 m/sec 0.10 meters LN_SRD-423 Absolute timing knowledge 0.025 msec 0.09 meters LN_SRD-421 Jitter - Band 1 1.80 urad 0.66 meters SCIRD-271 Jitter - Band 2 1.80 urad 0.66 meters SCIRD-271 Spacecraft Roll-Up 1.09 meters Instrument Instrument clock uncertainty (VSWIR) - Band 1 0.025 msec 0.09 meters LaRD-1216 Time tag uncertainty (VSWIR) - Band 1 0.025 msec 0.09 meters LaRD-3423 Instrument clock uncertainty (VSWIR) - Band 2 0.025 msec 0.09 meters Error decorrelates over 15s LaRD-1216 Time tag uncertainty (VSWIR) - Band 2 0.025 msec 0.09 meters Error decorrelates over 15s LaRD-3423 VSWIR LOS relative knowledge (98 minutes) 2.4 urad 0.88 meters Count once LaRD-2968 Alignment stability (max band delay) 0.71 urad 0.26 meters Scaled from 30s LIRD-299 VSWIR boresight rel. knowledge (max band delay) 1.00 urad 0.37 meters Allocation Instrument Roll-Up 1.02 meters Ground 6378137 Re LOS knowledge within focal plane (VSWIR) 2.12 urad 0.78 meters Count twice Allocation 7026320 Ro Terrain Induced Error 1.91 meters 1.05 meters 15 sec separation ESA DEM 6m LE90 15 dT Modeling budget - Band 1 0.3 meters 0.16 meters Algorithms Allocation 5868.679 Tau Modeling budget - Band 2 0.3 meters 0.16 meters Algorithms Allocation 9.888 Angle Ground Roll-Up 1.32 meters 1.91 Parallax Combined Roll-Up 2.0 meters Prediction Lnext Level-3 Requirement 2.0 meters 10m bands LaRD-1073

Band Registration - VSWIR - 20m Allocation Spacecraft 3-sigma Units LE90 Units Notes Requirement Pointing over 15 seconds (max band delay allowed) 1.50 urad 0.55 meters LN_SRD-429 Velocity knowledge 0.2 m/sec 0.10 meters LN_SRD-423 Absolute timing knowledge 0.025 msec 0.09 meters LN_SRD-421 Jitter - Band 1 1.80 urad 0.66 meters SCIRD-271 Jitter - Band 2 1.80 urad 0.66 meters SCIRD-271 Spacecraft Roll-Up 1.09 meters Instrument Instrument clock uncertainty (VSWIR) - Band 1 0.025 msec 0.09 meters LaRD-1216 Time tag uncertainty (VSWIR) - Band 1 0.025 msec 0.09 meters LaRD-3423 Instrument clock uncertainty (VSWIR) - Band 2 0.025 msec 0.09 meters Error decorrelates over 15s LaRD-1216 Time tag uncertainty (VSWIR) - Band 2 0.025 msec 0.09 meters Error decorrelates over 15s LaRD-3423 VSWIR LOS relative knowledge (98 minutes) 2.4 urad 0.88 meters Count once LaRD-2968 Alignment stability (max band delay) 0.71 urad 0.26 meters Scaled from 30s LIRD-299 VSWIR boresight rel. knowledge (max band delay) 1.00 urad 0.37 meters Allocation Instrument Roll-Up 1.02 meters Ground LOS knowledge within focal plane (VSWIR) 4.24 urad 1.56 meters Scaled to 20m Allocation Terrain Induced Error 1.91 meters 1.05 meters 15 sec separation ESA DEM 6m LE90 Modeling budget - Band 1 0.3 meters 0.16 meters Algorithms Allocation Modeling budget - Band 2 0.3 meters 0.16 meters Algorithms Allocation Ground Roll-Up 1.89 meters Combined Roll-Up 2.4 meters Prediction Lnext Level-3 Requirement 3.0 meters 20m bands LaRD-1073

Band Registration - VSWIR - 60m Allocation Spacecraft 3-sigma Units LE90 Units Notes Requirement Pointing over 15 seconds (max band delay allowed) 1.50 urad 0.55 meters LN_SRD-429 Velocity knowledge 0.2 m/sec 0.10 meters LN_SRD-423 Absolute timing knowledge 0.025 msec 0.09 meters LN_SRD-421 Jitter - Band 1 1.80 urad 0.66 meters SCIRD-271 Jitter - Band 2 1.80 urad 0.66 meters SCIRD-271 Spacecraft Roll-Up 1.09 meters Instrument Instrument clock uncertainty (VSWIR) - Band 1 0.025 msec 0.09 meters LaRD-1216 Time tag uncertainty (VSWIR) - Band 1 0.025 msec 0.09 meters LaRD-3423 Instrument clock uncertainty (VSWIR) - Band 2 0.025 msec 0.09 meters Error decorrelates over 15s LaRD-1216

Time tag uncertainty (VSWIR) - Band 2 0.025 msec 0.09 meters Error decorrelates over 15s LaRD-3423 VSWIR LOS relative knowledge (98 minutes) 2.4 urad 0.88 meters Count once LaRD-2968 Alignment stability (max band delay) 0.71 urad 0.26 meters Scaled from 30s LIRD-299 VSWIR boresight rel. knowledge (max band delay) 1.00 urad 0.37 meters Allocation Instrument Roll-Up 1.02 meters Ground LOS knowledge within focal plane (VSWIR) 12.73 urad 4.67 meters Scaled to 60m Allocation Terrain Induced Error 1.91 meters 1.05 meters 15 sec separation ESA DEM 6m LE90 Modeling budget - Band 1 0.3 meters 0.16 meters Algorithms Allocation Modeling budget - Band 2 0.3 meters 0.16 meters Algorithms Allocation Ground Roll-Up 4.79 meters Combined Roll-Up 5.0 meters Prediction Lnext Level-3 Requirement 6.0 meters 60m bands LaRD-1073

Band Registration - TIR Allocation Spacecraft 3-sigma Units LE90 Units Notes Requirement Pointing over 15 seconds (max band delay allowed) 1.5 urad 0.55 meters LN_SRD-429 Absolute timing knowledge 0.025 msec 0.09 meters LN_SRD-421 Velocity knowledge 0.2 m/sec 0.10 meters LN_SRD-423 Spacecraft Roll-Up 0.57 meters Instrument TIR alignment stability 4.00 urad 1.47 meters Allocation Instrument clock uncertainty (TIR) - Band 1 0.025 msec 0.09 meters LaRD-1216 Time tag uncertainty (TIR) - Band 1 0.025 msec 0.09 meters LaRD-3423 Instrument clock uncertainty (TIR) - Band 2 0.025 msec 0.09 meters Error decorrelates over 15s LaRD-1216 Time tag uncertainty (TIR) - Band 2 0.025 msec 0.09 meters Error decorrelates over 15s LaRD-3423 TIR HF LOS relative knowledge (30 seconds) 8 urad 2.94 meters LaRD-2975 TIR HF LOS relative knowledge (30 seconds) 8 urad 2.94 meters LaRD-2975 Instrument Roll-Up 4.41 meters Ground Terrain Induced Error 1.91 meters 1.05 meters 15 sec separation ESA DEM 6m LE90 LOS knowledge (TIR to TIR) 9.0 urad 3.30 meters Calibration Allocation Modeling budget - Band 1 0.3 meters 0.16 meters Algorithms Allocation Modeling budget - Band 2 0.3 meters 0.16 meters Algorithms Allocation Ground Roll-Up 3.47 meters Combined Roll-Up 5.6 meters Prediction Lnext Level-3 Requirement 6.0 meters 60m bands LaRD-1073

Reflective to Thermal Band Registration Allocation Spacecraft 3-sigma Units LE90 Units Notes Requirement

Pointing over 15 seconds (max band delay allowed) 1.5 urad 0.55 meters LN_SRD-429 Velocity knowledge 0.2 m/sec 0.10 meters LN_SRD-423 Absolute timing knowledge 0.025 msec 0.09 meters LN_SRD-421 Spacecraft Jitter (to VSWIR LOS) 1.80 urad 0.66 meters SCIRD-271 Spacecraft Roll-Up 0.87 meters Instrument Instrument clock uncertainty (VSWIR) 0.025 msec 0.09 meters LaRD-1216 Time tag uncertainty (VSWIR) 0.025 msec 0.09 meters LaRD-3423 Instrument clock uncertainty (TIR) 0.025 msec 0.09 meters LaRD-1216 Time tag uncertainty (TIR) 0.025 msec 0.09 meters LaRD-3423 TIR to VSWIR alignment stability (98 minutes) 4 urad 1.47 meters Allocation VSWIR LOS relative knowledge (98 minutes) 2.4 urad 0.88 meters LaRD-2968 VSWIR boresight relative knowledge (98 minutes) 8 urad 2.94 meters LaRD-2970 TIR LF LOS relative knowledge (98 minutes) 16 urad 5.87 meters LaRD-2971 TIR HF LOS relative knowledge (30 seconds) 8 urad 2.94 meters LaRD-2975 Instrument Roll-Up 7.74 meters Ground LOS knowledge focal plane-to-boresight (VSWIR) 3 urad 1.10 meters Calibration Allocation LOS knowledge within focal plane (VSWIR) 9 urad 3.30 meters Scaled to 60m Allocation LOS knowledge (TIR to VSWIR) 10 urad 3.67 meters Calibration Allocation Terrain Induced Error 1.91 meters 1.05 meters 20 sec separation ESA DEM 6m LE90 Modeling budget - VSWIR 0.3 meters 0.16 meters Algorithms Allocation Modeling budget - TIR 0.3 meters 0.16 meters Algorithms Allocation Ground Roll-Up 5.17 meters Combined Roll-Up 9.3 meters RSS Prediction Lnext Level-3 Requirement 15.0 meters LaRD-1073

Image Registration - VSWIR Allocation Spacecraft 3-sigma Units LE90 Units Notes Requirement Pointing over 30 seconds (1 scene) - Scene 1 2 urad 0.73 meters LN_SRD-428 Spacecraft Jitter (to VSWIR LOS) - Scene 1 1.80 urad 0.66 meters SCIRD-271 Pointing over 30 seconds (1 scene) - Scene 2 2 urad 0.73 meters LN_SRD-428 Spacecraft Jitter (to VSWIR LOS) - Scene 2 1.80 urad 0.66 meters SCIRD-271 Spacecraft Roll-Up 1.40 meters Instrument Instrument clock uncertainty (VSWIR) - Scene 1 0.025 msec 0.09 meters LaRD-1216 Time tag uncertainty (VSWIR) - Scene 1 0.025 msec 0.09 meters LaRD-3423 Alignment stability (30 sec) - Scene 1 1 urad 0.37 meters LIRD-299 VSWIR internal stability (30 seconds) - Scene 1 1.5 urad 0.55 meters Allocation VSWIR LOS relative knowledge (98 minutes) - Scene 1 2.4 urad 0.88 meters LaRD-2968 Instrument clock uncertainty (VSWIR) - Scene 2 0.025 msec 0.09 meters LaRD-1216 Time tag uncertainty (VSWIR) - Scene 2 0.025 msec 0.09 meters LaRD-3423 Alignment stability (30 sec) - Scene 2 1 urad 0.37 meters LIRD-299 VSWIR internal stability (30 seconds) - Scene 2 1.5 urad 0.55 meters Allocation VSWIR LOS relative knowledge (98 minutes) - Scene 2 2.4 urad 0.88 meters LaRD-2968 Instrument Roll-Up 1.82 meters Ground LOS knowledge focal plane-to-boresight (VSWIR) - Scene 1 3 urad 1.10 meters Allocation LOS knowledge focal plane-to-boresight (VSWIR) - Scene 2 3 urad 1.10 meters Allocation Modeling budget - Scene 1 0.3 meters 0.16 meters Algorithms Allocation Modeling budget - Scene 2 0.3 meters 0.16 meters Algorithms Allocation Registration processing budget 2.5 meters 1.37 meters 0.25 pixel Allocation Ground Roll-Up 2.09 meters Combined Roll-Up 3.1 meters Prediction Lnext Level-3 Requirement 5.0 meters LaRD-1075

Relative Geodetic Accuracy - VSWIR Allocation Spacecraft 3-sigma Units CE90 Units Notes Requirement Absolute pointing 20 urad 1.36 meters Yaw only LN_SRD-425 Pointing over 30 seconds (1 scene) 2 urad 0.96 meters LN_SRD-428 Ephemeris knowledge 10 meters 0.92 meters Z only LN_SRD-422 Velocity knowledge 0.2 m/sec 0.13 meters LN_SRD-423 Spacecraft Jitter (to VSWIR LOS) 1.8 urad 0.86 meters SCIRD-271 Spacecraft Roll-Up 2.09 meters Instrument Instrument clock uncertainty (VSWIR) 0.025 msec 0.12 meters LaRD-1216 Time tag uncertainty (VSWIR) 0.025 msec 0.12 meters LaRD-3423

VSWIR Alignment stability (30 seconds) 1 urad 0.48 meters LIRD-299 VSWIR boresight relative knowledge (30 seconds) 1.5 urad 0.72 meters Allocation VSWIR LOS relative knowledge (98 minutes) 2.4 urad 1.15 meters LaRD-2968 Instrument Roll-Up 1.68 meters Ground LOS knowledge focal plane-to-boresight (VSWIR) 3 urad 1.44 meters Calibration Allocation Alignment knowledge (VSWIR to star tracker) 9 urad 0.61 meters Yaw only Allocation Band registration (VSWIR) 5.5 meters 3.91 meters LaRD-1073 Modeling budget 0.3 meters 0.21 meters Algorithms Allocation Ground Segment Roll-Up 4.22 meters Combined Roll-Up 5.0 meters Prediction Lnext Level-3 Requirement 9.0 meters LaRD-1080

Image Registration - TIR Allocation Spacecraft 3-sigma Units LE90 Units Requirement Pointing over 30 seconds (1 scene) - Scene 1 2 urad 0.73 meters LN_SRD-428 Pointing over 30 seconds (1 scene) - Scene 2 2 urad 0.73 meters LN_SRD-428 Spacecraft Roll-Up 1.04 meters Instrument Instrument clock uncertainty (TIR) - Scene 1 0.025 msec 0.09 meters LaRD-1216 Time tag uncertainty (TIR) - Scene 1 0.025 msec 0.09 meters LaRD-3423 TIR to VSWIR alignment stability (98 minutes) - Scene 1 4 urad 1.47 meters Allocation TIR LF LOS relative knowledge (98 minutes) - Scene 1 16 urad 5.87 meters LaRD-2971 Instrument clock uncertainty (TIR) - Scene 2 0.025 msec 0.09 meters LaRD-1216 Time tag uncertainty (TIR) - Scene 2 0.025 msec 0.09 meters LaRD-3423 TIR to VSWIR alignment stability (98 minutes) - Scene 2 4 urad 1.47 meters Allocation TIR LF LOS relative knowledge (98 minutes) - Scene 2 16 urad 5.87 meters LaRD-2971 Instrument Roll-Up 8.56 meters Ground LOS knowledge (TIR to TIR) - Scene 1 9 urad 3.3 meters Allocation LOS knowledge (TIR to TIR) - Scene 2 9 urad 3.3 meters Allocation Modeling budget - Scene 1 0.3 meters 0.2 meters Algorithms Allocation Modeling budget - Scene 2 0.3 meters 0.2 meters Algorithms Allocation Registration processing budget 15 meters 8.2 meters 0.25 pixel Allocation Ground Roll-Up 9.46 meters Combined Roll-Up 12.8 meters Prediction