CASSIOPE SPACECRAFT (Swarm-E)
PROCESSED DATA HANDBOOK
Bus Telemetry CDF File
The Bus Telemetry CDF file is a daily product.
The Common Data Format (CDF) file is written to the International Solar-Terrestrial Physics (ISTP) standard. This CDF file contains many of CASSIOPE’s bus telemetry definitions and their values in binary CDF self describing data.
| Attribute | CDF Variable Name |
| Attitude Determination Mode | adcs_mode |
| Time of Bus Attitude Solution | quat_fused_time |
| Attitude Solution Quaternion Inertial to Body (Scalar) | quat_fused_0 |
| Attitude Solution Quaternion Inertial to Body | quat_fused_1 |
| Attitude Solution Quaternion Inertial to Body | quat_fused_2 |
| Attitude Solution Quaternion Inertial to Body | quat_fused_3 |
| Spacecraft X Rotation Rate | rotation_rate_x |
| Spacecraft Y Rotation Rate | rotation_rate_y |
| Spacecraft Z Rotation Rate | rotation_rate_z |
| Spacecraft X Rotation Rate Error | rotation_rate_err_x |
| Spacecraft Y Rotation Rate Error | rotation_rate_err_y |
| Spacecraft Z Rotation Rate Error | rotation_rate_err_z |
| Star Tracker A CCD Temperature | star_tracker_a_ccd_temp |
| Star Tracker B CCD Temperature | star_tracker_b_ccd_temp |
| Star Sensor A Quaternion (Scalar) | star_tracker_a_quat_scalar |
| Star Sensor A Quaternion 1 | star_tracker_a_quat_1 |
| Star Sensor A Quaternion 2 | star_tracker_a_quat_2 |
| Star Sensor A Quaternion 3 | star_tracker_a_quat_3 |
| Star Sensor B Quaternion (Scalar) | star_tracker_b_quat_scalar |
| Star Sensor B Quaternion 1 | star_tracker_b_quat_1 |
| Star Sensor B Quaternion 2 | star_tracker_b_quat_2 |
| Star Sensor B Quaternion 3 | star_tracker_b_quat_3 |
| Sun Sensor Measured Unit Sun Vector X | css_sun_vector_unit_x |
| Sun Sensor Measured Unit Sun Vector Y | css_sun_vector_unit_y |
| Sun Sensor Measured Unit Sun Vector Z | css_sun_vector_unit_z |
| Applied Command Torque Force X (Nm) | tr_cmdtrq_x |
| Applied Command Torque Force Y (Nm) | tr_cmdtrq_y |
| Applied Command Torque Force Z (Nm) | tr_cmdtrq_z |
| Total Battery Current (A) | batt_curr |
| Battery Impedance | batt_impedance |
| Battery Capacity | batt_capacity |
| Battery Voltage (V) | batt_volt |
| MGF Current (A) | mgf_curr |
| MGF Electronics Box Temperature (°C) | mgf_box_temp |
| MGF Boom Temperature (°C) | mgf_boom_temp |
| Command and Data Handler Temperature | cdh1_temp |
| Zone 1 Temperature | heater_zone_1_temp |
| Zone 2 Temperature | heater_zone_2_temp |
| Battery Temperature | heater_zone_batt_temp |
| CX 1 Temperature | heater_zone_cx_1_temp |
| CX 2 Temperature | heater_zone_cx_2_temp |
| e-POP Panel Temperature | heater_zone_epop_temp |
| IRM eBox Temperature | heater_zone_irm_temp |
| MGF eBox Temperature | heater_zone_mgf_temp |
| CX Data Storage Unit Temperature | heater_zone_mo_dsu_temp |
| FAI eBox Temperature | fai_temp |
| GAP eBox Temperature | gap_temp |
| CERTO eBox Temperature | cer_temp |
| RRI eBox Temperature | rri_temp |
| NMS eBox Temperature | nms_temp |
| Power Control Unit Temperature | pcu_temp |
| MGF eBox Temperature | mgf_ebox_temp |
| Wheel 1 Current (A) | whl_1_curr |
| Wheel 2 Current (A) | whl_2_curr |
| Wheel 3 Current (A) | whl_3_curr |
| Wheel 4 Current (A) | whl_4_curr |
| Wheel 1 Temperature (°C) | whl_1_temp |
| Wheel 2 Temperature (°C) | whl_2_temp |
| Wheel 3 Temperature (°C) | whl_3_temp |
| Wheel 4 Temperature (°C) | whl_4_temp |
| Solar Panel 1 Voltage (V) – Voltage from 1/2 of the top solar panel | slr_1_volt |
| Solar Panel 2 Voltage (V) – Combination of the Anti-Ram +Y and the Ram -Y panel voltages | slr_2_volt |
| Solar Panel 3 Voltage (V) – Combination of the Anti-Ram -Y and the Ram +Y panel voltages | slr_3_volt |
| Solar Panel 4 Voltage (V) – Voltage from 1/2 of the top solar panel | slr_4_volt |
| Total Solar Panel Current (A) | slr_curr |
| Wheel 1 Speed (Radians/s) | whl_1_spd_meas |
| Wheel 1 Speed Commanded (Radians/s) | whl_1_spd_cmd |
| Wheel 1 Speed Desired (Radians/s) | whl_1_spd_des |
| Wheel 2 Speed (Radians/s) | whl_2_spd_meas |
| Wheel 2 Speed Commanded (Radians/s) | whl_2_spd_cmd |
| Wheel 2 Speed Desired (Radians/s) | whl_2_spd_des |
| Wheel 3 Speed (Radians/s) | whl_3_spd_meas |
| Wheel 3 Speed Commanded (Radians/s) | whl_3_spd_cmd |
| Wheel 3 Speed Desired (Radians/s) | whl_3_spd_des |
| Wheel 4 Speed (Radians/s) | whl_4_spd_meas |
| Wheel 4 Speed Commanded (Radians/s) | whl_4_spd_cmd |
| Wheel 4 Speed Desired (Radians/s) | whl_4_spd_des |
| Wheel 1 Commanded Torque | whl_trq_cmd_1 |
| Wheel 2 Commanded Torque | whl_trq_cmd_2 |
| Wheel 3 Commanded Torque | whl_trq_cmd_3 |
| Wheel 4 Commanded Torque | whl_trq_cmd_4 |
| Wheel 1 Desired Torque | whl_trq_des_1 |
| Wheel 2 Desired Torque | whl_trq_des_2 |
| Wheel 3 Desired Torque | whl_trq_des_3 |
| Wheel 4 Desired Torque | whl_trq_des_4 |
| IRM Current (A) | irm_curr |
| SEI Current (A) | sei_curr |
| GAP Current (A) | gap_curr |
| RRI Current (A) | rri_curr |
| FAI Current (A) | fai_curr |
| CERTO Current (A) | cer_curr |
| NMS Current (A) | nms_curr |
| Bus MAG A Current (A) | mag_a_curr |
| Bus MAG B Current (A) | mag_b_curr |
| Star Sensor Controller A Current (A) | ss_a_curr |
| Star Sensor Controller B Current (A) | ss_b_curr |
| S-band Tx A Current (A) | tx_a_curr |
| S-band Tx B Current (A) | tx_b_curr |
| S-Band Rx A Current (A) | rx_a_curr |
| S-Band Rx B Current (A) | rx_b_curr |
| CDH A Non-Essential Components Current Draw (A) | cdh_a_noness_curr |
| CDH B Non-Essential Components Current Draw (A) | cdh_b_noness_curr |
| PDM 1 Group 1 Heaters Current (A) | pdm_1_g1_htr_curr |
| PDM 1 Group 2 Heaters Current (A) | pdm_1_g2_htr_curr |
| PDM 4 Group 1 Heaters Current (A) | pdm_4_g1_htr_curr |
| PDM 4 Group 2 Heaters Current (A) | pdm_4_g2_htr_curr |
| PDM 5 Group 1 Heaters Current (A) | pdm_5_g1_htr_curr |
| PDM 5 Group 2 Heaters Current (A) | pdm_5_g2_htr_curr |
| CDH Unit Manager A Current (A) | cdh_um_a_curr |
| CDH Unit Manager B Current (A) | cdh_um_b_curr |
| Battery Survival Heater Current (A) | batt_surv_htr_curr |
| CX MO 1 Current (A) | cx_mo_1_curr |
| CX MO 2 Current (A) | cx_mo_2_curr |
| CX TWTA A1 Current | cx_twta_a1_curr |
| CX TWTA A2 Current | cx_twta_a2_curr |
| CX TWTA A3 Current | cx_twta_a3_curr |
| PCU LCL128 Current | lcl128_curr |
| CX DSU B Current | cx_dsu_b_curr |
| CDH B Non-Essential Current | cdh_b_ness_curr |
| Wheel 1 Current | wheel_1_curr |
| CDH A Tx Port Current | cdh_a_tx_port_curr |
| Heater PDM1GRP2 Current | heater_pdm1grp2_curr |
| Heater PDM1GRP1 Current | heater_pdm1grp1_curr |
| CX Mod B Current | cx_mod_b_curr |
| PCU LCL228 Current | lcl228_curr |
| CX RF Switch B Current | cx_rf_switch_b_curr |
| CX RF Switch A Current | cx_rf_switch_a_curr |
| CX Rx 2 Current | cx_rx_2_curr |
| CX Rx 1 Current | cx_rx_1_curr |
| CDH B Tx Port Current | cdh_b_tx_port_curr |
| CX Mod A Current | cx_mod_a_curr |
| Unused Switch Current | unused_switch_curr |
| LCL328 Current | lcl328_curr |
| CX Demod B Current | cx_demod_b_curr |
| Wheel 2 Current | wheel_2_curr |
| CERTO Current | certo_curr |
| Star Sensor DPU A Current | star_tracker_dpu_a_curr |
| CX FGU 2 Current | cx_fgu_2_curr |
| CX FGU 1 Current | cx_fgu_1_curr |
| LCL428 Current | lcl428_curr |
| CX RF Switch D Current | cx_rf_switch_d_curr |
| CX Demod A Current | cx_demod_a_curr |
| Wheel 3 Current | wheel_3_curr |
| CX RF Switch C Current | cx_rf_switch_c_curr |
| Star Sensor DPU B Current | star_tracker_dpu_b_curr |
| Heater PDM4GRP2 Current | heater_pdm4grp2_curr |
| Heater PDM4GRP1 Current | heater_pdm4grp1_curr |
| CX TWTA B2 Current | cx_twta_b2_curr |
| CX TWTA B1 Current | cx_twta_b1_curr |
| LCL528 Current | lcl528_curr |
| CX DSU A Current | cx_dsu_a_curr |
| CDH A Non-Essential Current | cdh_a_ness_curr |
| Wheel 4 Current | wheel_4_curr |
| CX TWTA B3 Current | cx_twta_b3_curr |
| Heater PDM5GRP2 Current | heater_pdm5grp2_curr |
| Heater PDM5GRP1 Current | heater_pdm5grp1_curr |