RFI_Q_A_2.xlsx
XLSX spreadsheet 19 KB Posted
- Attached to
- LANDSAT TRI-BAND ANTENNA PROJECT
- Solicitation number
- DOIGFBO260032
About this file
This file is a Questions and Answers document from the USGS related to the LANDSAT Tri-Band Antenna Project RFI. The document addresses six key inquiries from potential contractors regarding technical and procurement specifications for the antenna system upgrade.
The responses clarify critical requirements for the project: the Uninterruptible Power Supply (UPS) must have sufficient capacity to operate the antenna for at least 30 minutes following main facility power interruption to enable complete pre-pass, pass execution, and post-pass operations with graceful shutdown capability. Previous radome systems used include a Ratech 60-foot radome (Serial No. RII-00134-98) and a Ratech 25-foot radome. The USGS has provided existing Modular Control Center (MCC) Bill of Materials and documentation, identified Electric Supply FSD as a civil works vendor for MCC adaptation, and referenced the SC-GND IRD L10-SC-ICD-0007 spacecraft-to-ground interface specification document regarding modulation types, symbol rates, and error correction. Historical antenna solutions delivered for previous LANDSAT projects include a 10-meter Datron 3-axis S and X-band antenna (Model 125922-105) and a 5.4-meter ViaSat X/Y S and X-band antenna (Model 720243-00).
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Text version
Sheet1
| Count | Question | USGS Response |
| 1 | Regarding UPS requirements. What duration does the UPS need to last for? Can it be an electric power pack that allows you to do a graceful shutdown of the antenna or do you want 24x7 guaranteed up time for the antenna even with a power failure? | Referencing the requirements document attached to the RFI below, you will find requirment 3.8.4. The UPS is only needed to safely complete a pass and perform a graceful shutdown in the event of a main facility power failure. |
3.8.4 The UPS shall have sufficient capacity to operate the antenna for at least 30 minutes, following the interruption of main facility power Rationale: Allows for complete pre-pass, pass execution, and post-pass to be supported 2 What radome / radome manufacturers have been used in the past? Ratech 60 Foot Radome Serial NO: RII-00134-98
Ratech 25 Foot Radome (Unknown model/SN)
| 3 | Can we please get the existing MCC BOM & documentation. | Attached |
| 4 | Which Civil Works vendors to perform adaptation to the existing MCC | https://electricsupplyfsd.com/ |
| 5 | Can we get the spacecraft to ground SC-GND IRD L10-SC-ICD-0007 specifying modulation type, symbol rates error correction types ? | Attached |
| 6 | What antenna solutions have been delivered for previous LANDSAT projects? | 10-Meter Datron 3-Axis S and X-Band Antenna |
Model: 125922-105
5.4-Meter ViaSat X/Y S and X-Band Antenna Model: 720243-00
File details come from the government source that posted it. Updated .