Amendment Number 2.pdf

OMB APPROVAL #: 2700-0042

AMENDMENT OF SOLICITATION/ 1. CONTRACT ID CODE PAGE OF

MODIFICATION OF CONTRACT 1 3

2. AMENDMENT/MODIFICATION NO. 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQ. NO. 5. PROJECT NO. (If applicable) Amendment Two (2) See Block 16C N/A

6. ISSUED BY CODE 210.S 7. ADMINISTERED BY (If other than Item 6) CODE 210.S National Aeronautics and Space Administration Goddard Space Flight Center Space Sciences Procurement Office Greenbelt, MD 20771

Julie Janus

(301) 286-4931

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State, and Zip Code)

TO ALL OFFERORS

CODE FACILITY CODE

(x) 9A. AMENDMENT OF SOLICITATION NO. 9B. DATED (SEE ITEM 11) X 80GSFC20R0035 April 1, 2020

10A. MODIFICATION OF CONTRACT/ORDER NO. 10B. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers is extended, x Is not extended.

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods:

(a) By completing Items 8 and 15, and returning 2 Copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offor Submitted; or © By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram Or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required) N/A

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS,

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.(x)

(x) A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

d. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor Is not, X Is required to sign this document and return 1 copies to the issuing office.

14. description of amendment/modification (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

This amendment revises Attachment B, Specification, to Clause J.1, List of Attachments, to the Request for Proposal (RFP) 80GSFC20R0035; Coarse Sun Sensors for the WFIRST Project.

Accordingly, 15A. NAME AND TITLE OF SIGNER (Type or print) 16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

Julie Janus, Contracting Officer 15B. CONTRACTOR/OFFEROR 15C. DATE SIGNED 16B. UNITED STATES OF AMERICA 16C. DATE SIGNED

BY May 8, 2020 (Signature of person authorized to sign) (Signature of Contracting Officer)

NSN 7540-01-152-8070

PREVIOUS EDITION UNUSABLE

30-105 STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

RFP 80GSFC20R0035

Amendment Number 2

A. Revise Clause J.1, List of Attachments, Attachment B, Specification, as follows:

Section 10.5.12 is revised as follows:

10.5.12 Thermal Vacuum Test

10.5.12.1 Thermal Vacuum Test Parameters

Thermal vacuum testing shall be conducted in accordance with the requirements of Table 10-4.

Table 10-4. Thermal Vacuum Test Parameters

Parameter Component Level

Chamber Pressure After Evacuation < 1 x 10-5 Torr

Number of Cycles 12

Acceptance Temperature Limits (beyond operational limits)

5 °C

Proto-flight Temperature Limits (beyond operational limits)

10 °C

Temperature Rate of Change 2 – 4 °C per minute

Minimum Dwell Time (at cold and hot plateaus) 4 hrs

Cold/Hot Turn On of Components (at cold and hot plateaus)

Yes

Total Number of Comprehensive Performance Tests (at least one each at cold and hot plateaus) ³ 2

10.5.12.2 Thermal Vacuum Test Profile

a. During Thermal Vacuum testing, the CSS shall be in flight configuration, with the possible exception that items that do not involve mechanisms may remove their thermal blankets to speed the transition times between temperature extremes.

b. The CSS shall apply the Thermal Vacuum Test profile shown in Figure 10-1.

RFP 80GSFC20R0035

Amendment Number 2

(1) A CPT will be performed prior to the start of chamber evacuation at nominal voltage of +32 volts.

(2) The component will be powered and critical parameters monitored using the AFT during chamber evacuation. For RF components that are expected to be powered during launch, the absence of corona or multipaction effects will be verified.

(3) Bake-out will be performed.

(4) Unpowered survival soak will be performed.

(5) Cold-start and hot-start capability will be demonstrated by performing CPTs at first cold and hot plateaus. When self-heating is used to achieve cold qualification temperatures, cold start shall be demonstrated at cold survival temperatures. The component shall operate in spec after cold qualification temperatures are achieved. When operation heaters will be used to achieve cold qualification temperatures, cold start shall occur at cold qualification temperatures.

(6) During the transition between temperature extremes, the component will remain powered and its performance will be monitored and recorded using the AFT.

(7) LPTs will be performed after a soak period at the high/low temperature plateaus during Cycles 2-

11. At least 1 LPT will be performed at minimum voltage at both hot and cold plateaus. At least 1 LPT will be performed at maximum voltage at both hot and cold plateaus.

(8) Cold-start and hot-start capability will be demonstrated again at the eighth cold and hot plateaus.

(9) Cycles 1-12 will be performed at protoflight/qual temperature limits or acceptance temperature limits (if applicable)

Figure 10-1. Thermal Vacuum Profile

B. All other terms and conditions are unchanged.

-- END OF AMENDMENT TWO (2) --