4717

S-49 Satellite Gegenschein Experiment Electronics

Currency:USD Category:Collectibles / Autographs Start Price:NA Estimated At:250.00 - 400.00 USD
S-49 Satellite Gegenschein Experiment Electronics

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Auction Date:2018 Oct 18 @ 18:00 (UTC-5 : EST/CDT)
Location:236 Commercial St., Suite 100, Boston, Massachusetts, 02109, United States
ALS - Autograph Letter Signed
ANS - Autograph Note Signed
AQS - Autograph Quotation Signed
AMQS - Autograph Musical Quotation Signed
DS - Document Signed
FDC - First Day Cover
Inscribed - “Personalized”
ISP - Inscribed Signed Photograph
LS - Letter Signed
SP - Signed Photograph
TLS - Typed Letter Signed
S-49 Satellite Gegenschein Experiment Electronics module, measuring 7.5? x 8? x 6.5?, with a tag applied to one panel: "Gegenschein Photometry, GSFC/ITTIL, Mission S-49, Part No. 4704527-GI, Serial No. FU2." The sides have serial ports marked "B-1," "B-2," and "B-3." The module's wiring is exposed on the back. In fine condition. The 'gegenschein' is a faintly bright spot in the night sky around the antisolar point, an optical phenomenon caused by the backscatter of sunlight by interplanetary dust.