Spacecraft Unit Mean and Peak Power Consumptions

The table below contains the rated power consumption of the units on the Ulysses spacecraft. Peak powers are also given for those units which can take high transient loads. The power dissipation of the driver or switch associated with each unit is also given.

Platform Unit Power Consumptions
Unit Mean (W) Peak (W) Driver
(W, location)
Power Control Unit
Power Distribution Unit
Pyro Electronics (armed)
                      (firing)
Wire Boom Electronics
Both Wire Boom Drives
Axial Boom Drive		 4.9
2.8
0.7
154.0
1.0
11.8
6.7		 10.6
4.2
 
 

 

 1.0 PDU
0.5 PDU
Decoder
Decoder Execute		 6.7
2.5		   0.1 PDU
0.2 PDU
Data Handling Converter
Central Terminal Unit
Remote Terminal Unit
Remote Control and Interface Unit
Data Storage Unit (standby)
Data Storage Unit (record)
Data Storage Unit (playback)
STS Interface Unit		 1.8
3.3
2.3
3.4
2.6
7.4
7.5
3.1		 7.2
 
 
 
 

 
1.1 DHC
0.8 DHC
1.1 DHC
0.9 DHC
2.5 DHC
2.5 DHC
1.0 DHC
Attitude & Orbit Control Converter
Cross Beam Sun Sensor
Meridian Slit Sun Sensor
Processing Electronics
Control Electronics
Catalyst Bed Heater Pair
Latching Valve actuation
Flow Control Valve actuation		 3.3
0.7
0.7
3.9
0.3
5.6

 

 4.5
 
 
 
 

39.4
6.0

  
Transponders
Transmitter 1 S-band
Transmitter 1 X-band
Transmitter 2 S-band
Transmitter 2 X-band
Receiver
33.0
8.2
32.0
7.3
3.4		  
1.2 PCU
0.3 PCU
1.2 PCU
0.3 PCU
0.1 PCU
Radio Frequency Distribution Unit 0.8 22.4  
Electronic Power Converter (basic)
TWTA HV X-band off
TWTA HV X-band on, EPC 1
TWTA HV X-band on, EPC 2		 0.6
40.3
64.4
62.3		   0.1 PDU

 
Heaters & Power Dumpers
Hot Case Heater
Cold Case Heater
+X Wing Heater
-X Wing Heater
Longeron Heater

100W External Power Damper
50W EPD
40W EPD
20W EPD
10W EPD
8.7
24.7
1.3
1.6
6.6

99.8
48.1
41.8
19.9
9.2

  
0.2 PCU
0.2 PCU
0.1 PCU
0.2 PCU
0.8 PCU

0.4 PCU
0.2 PCU
0.2 PCU
1.4 PCU
0.5 PCU
Payload Unit Power Consumptions
Unit Mean (W) Peak (W) Driver
(W, location)
Main Switch basic     0.1 PDU
SWOOPS
BAM-E
BAM-I
2.5
2.9		 7.0  
Solar Wind Ion Composition Spectrometer
SWICS Unit
SWICS Compensation Heater
Experiment Heater 1
Experiment Heater 2
Experiment Heater 3
Bakeout Heater		 3.8
3.5
0.5
0.5
0.5
2.0		 5.0
 

 

  
Interplanetary Dust
GRU/DUST
GRU 2 Heater 1
GRU 2 Heater 2
2.1
0.4
0.8
 

1.2

  
Magnetometer
HED-1
HED-2
HED-4 VHM Heater
2.2
2.9
1.1
3.0
 

thermostatic
Gamma Ray Burst
HUS
HUS Heater
2.6
2.1		    
Energetic Particle Composition Experiment
KEP EPAC
KEP Heater
3.5
0.5		    
Interstellar Neutral Gas
GAS
LiF evaporation heater
0.6		 6.0  
Heliosphere Instrument for Spectra, Composition and Anisotropy at Low Energies
LAN Compensation Heater
LAN heaters
Spiral Motor heaters		 3.8
 

5.9
6.0
2.4

 4.0
 
 

thermostatic
Cosmic Ray and Solar Particle Investigation
SIM-2 heater
14.6
1.8
16.6		  
Unified Radio and Plasma Wave Investigation
Search Coil Heater
Side A only
Side B only
10.0
0.9
TBD
TBD
10.1