Hacking the stars (#4)

Now that the ISEE-3 Reboot Project has successfully started talking to the almost-abandoned ISEE-3 space probe (isn’t it great?), it’s worth taking an inventory of the (rather old) experiments on board. This is my understanding of the last known status:

1. BAH: Solar Wind Plasma [electrons only, ion portion failed]

2. OGH: Solar Wind Ion Composition [operational]

3. SMH: Vector Helium Magnetometer [operational]

4. SCH: Plasma Waves Spectrum Analyzer [operational]

5. DFH/EPAS: Energetic Particle Anisotropy Spectrometer – see image below, from Imperial College [operational]

6. SBH: Radio Mapping of Solar Wind Disturbances in 3-D [operational]

7A. ANH: X- and Gamma-Ray Bursts [operational]

7B. ANH: Interplanetary and Solar Electrons > 2 keV [below 300 keV failed]

8. HOH: Low-Energy Cosmic Rays [partial failure]

9. TYH: Medium Energy Cosmic Rays [operational]

10. STH: Cosmic Ray Isotope Spectrometer [partial failure]

11. HKH: High-Energy Cosmic Rays [partial failure]

12. MEH: Cosmic-Ray Energy Spectrum [operational]

13. Gamma-Ray Bursts, 0.05-6.5 MeV [partial failure]

We’ll soon find out how accurate that list is. And hopefully, once the preliminaries are over, someone will think of some really cool stuff to do with that equipment…

Even if we get just one good data feed onto the web, I’ll consider the reboot a glorious success.

Update 1: The ISEE-3 Reboot Project reports successfully receiving engineering telemetry from the probe, although work is still required on decoding it:

7c 02 02 02 02 02 02 02 7c 02 02 02 02 02 02 02
7c 00 02 00 00 f2 00 00 7c 02 02 79 a0 00 00 00
7c 00 02 33 c8 02 4d 02 7c 4b 02 76 00 00 00 00
7c 02 02 53 01 02 39 02 7c 44 02 00 b1 49 00 00
7c 00 02 5a 00 19 5c 64 7c 4b 02 0e a0 00 00 00
7c 0e 02 4b 47 63 91 1d 7c 42 02 4d 36 00 00 00
7c 45 02 44 4e 8a 89 02 7c ce 02 50 a4 00 00 00
7c 48 02 32 4b b5 d2 ad 7c 33 02 12 fc 81 9f be

Update 2: The Reboot Project also reports that they are receiving information from the Vector Helium Magnetometer.

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