Tracking 35610 objects as of 16-Oct-2026
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ANDE CASTOR SPHERE


ANDE CASTOR SPHERE is no longer on orbit
ANDE CASTOR SPHERE is classified as:


NORAD ID: 35694
Int'l Code: 2009-038F
Launch date: July 15, 2009
Source: United States (US)
Launch site: AIR FORCE EASTERN TEST RANGE (AFETR)
Decay date: 2010-08-18

Uplink (MHz):
Downlink (MHz): 145.825
Beacon (MHz):
Mode: 1k2 AFSK
Call sign: KD4HBO
Status: Reentered


Castor and Pollux are two twin spherical satellites designed by students in cooperation with the Naval Research Laboratory as part of the Atmospheric Neutral Density Experiment (ANDE). Both satellites will transmit 1200-baud packet radio telemetry on 145.825 MHz. Hams are encouraged to submit telemetry reports with special QSLs and mission patches planned. Castor and Pollux will carry an FX.25 experiment that adds Forward Error Correction to standard AX.25 packets. The hope is that FX.25 will improve communication efficiency while still being compatible with existing packet equipment. The satellites will also occasionally run GMSK/FX.25 modulation experiments at 9600 baud.
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NASA's NSSDC Master Catalog

Two Line Element Set (TLE):
1 35694U 09038F   10230.44082147  .07179566  12689-4  99310-4 0  9990
2 35694 051.5930 222.0149 0004218 308.0851 053.0105 16.48877011 61107
Source of the keplerian elements: AFSPC