Level 0C
Level 0C Data Description
Version 3.1.0
Description
This product is the result of time-sorting the Level 0B data. Packets get put into the order they were generated rather than the order they were received on the ground. The final result is another series of per-day IDL savesets and an additional mission-length saveset.
What’s in Level 0c Data
Note: The primary science instrument is called the X123. The secondary science instruments are the SPS and XP. The attitude determination and control system (ADCS) is called XACT.
The Level 0C data consists of several anonymous structures (IDL lingo that is the equivalent of dictionaries in other languages). Each structure is a variable. Within each structure are tag/value pairs (aka key/value pair in other languages).
Level 0C structure definition
| Variable Name | Tag Name | Units | Description |
| hk | apid | – | 11-bit Application Process Identifier |
| seq_flag | – | Sequence flag | |
| seq_count | – | 14-bit Source Sequence Counter – Monotonically incrementing integer with each generated housekeeping packet | |
| data_length | – | Packet Data Length | |
| time | GPS seconds | Time of housekeeping packet generation according to uncorrected spacecraft clock in GPS time format | |
| cdh_info | – | CDH State and SC Mode Bitfields, decoded in subsequent variables | |
| cdh_state | – | CDH State Bitfield, decoded in subsequent variables | |
| spacecraft_mode | – | Spacecraft Mode Bitfield, 1 = phoenix, 2 = safe, 4 = science | |
| eclipse_state | – | Eclipse State Bitfield, onboard determination of (1) in eclipse or (0) in sun | |
| adcs_info | – | ADCS XACT FSW Bitfields, decoded in subsequent variables | |
| adcs_state | – | ADCS Sun Point State. 2 = search initialization 3 = searching, 4 = waiting 5 = converging, 6 = on sun, 7 = not active | |
| adcs_attitude_valid | – | ADCS attitude solution. 1 if obtained, 0 if not. | |
| adcs_refs_valid | – | ADCS validity of ephemeris. 1 if valid, 0 if not. | |
| adcs_time_valid | – | ADCS Time Valid. 1 if valid, 0 if not. | |
| adcs_recommend_sun | – | ADCS recommend sun (coarse) point. 1 if yes, 0 if no. | |
| adcs_mode | – | ADCS Mode, 0 = sun point, 1 = fine reference point | |
| adcs_highrateruncounter | – | ADCS (XACT) High Rate Run Count | |
| time_offset | ms (milliseconds) |
Time Offset during last RTC sync | |
| cmd_last_opcode | – | Opcode Value of Last Command Received | |
| cmd_last_status | – | Status of Last Command executed. 0=CMD_SUCCESS, 1=CMD_FAIL_LENGTH, 2=CMD_FAIL_APID, 3=CMD_FAIL_OPCODE, 4=CMD_FAIL_CHECKSUM, 5=CMD_FAIL_SAFE_MODE, 6=CMD_FAIL_DUAL_CMD, 7=CMD_FAIL_PARAMETER, 8=CMD_FAIL_STATE, 9=CMD_FAIL | |
| cmd_accept_count | – | Number of commands accepted since boot | |
| cmd_reject_count | – | Number of Commands Rejected since boot | |
| sd_hk_routing | – | Housekeeping Packet Routing, 1 = SD card only, 2 = real time routing to radio and SD card, 4 = to periodic beacon only, 8 = to ADCS | |
| sd_log_routing | – | Log Message Packet Routing, 1 = SD card only, 2 = real time routing to radio and SD card, 4 = to periodic beacon only, 8 = to ADCS | |
| sd_diag_routing | – | Diagnostic Packet Routing, 1 = SD card only, 2 = real time routing to radio and SD card, 4 = to periodic beacon only, 8 = to ADCS | |
| sd_adcs_routing | – | ADCS Packet Routing, 1 = SD card only, 2 = real time routing to radio and SD card, 4 = to periodic beacon only, 8 = to ADCS | |
| sd_ximg_routing | – | XACT Star Tracker Image Packet Routing, 1 = SD card only, 2 = real time routing to radio and SD card, 4 = to periodic beacon only, 8 = to ADCS | |
| sd_sci_routing | – | Science Packet Routing, 1 = SD card only, 2 = real time routing to radio and SD card, 4 = to periodic beacon only, 8 = to ADCS | |
| sd_hk_write_offset | – | Write Offset of HK Packet Block on SD Card | |
| sd_log_write_offset | Write Offset of Log Packet Block on SD Card | ||
| sd_diag_write_offset | Write Offset of Diagnostic Packet Block on SD Card | ||
| sd_adcs_write_offset | Write Offset of ADCS Packet Block on SD Card | ||
| sd_ximg_write_offset | Write Offset of XACT Star Tracker Image Packet Block on SD Card | ||
| sd_sci_write_offset | Write Offset of Science Packet Block on SD Card | ||
| sd_hk_read_offset | Read Offset of HK Packet Block on SD Card | ||
| sd_log_read_offset | Read Offset of Log Message Packet Block on SD Card | ||
| sd_diag_read_offset | Read Offset of Diagnostic Packet Block on SD Card | ||
| sd_adcs_read_offset | Read Offset of ADCS Packet Block on SD Card | ||
| sd_ximg_read_offset | Read Offset of XACT Star Tracker Image Packet Block on SD Card | ||
| sd_sci_read_offset | Read Offset of Science Packet Block on SD Card | ||
| fsw_major_minor | – | Flight Software Major and Minor Version Numbers | |
| fsw_patch_version | – | Flight Software Patch Version Number | |
| flight_model | – | Flight Model, either 1 or 2 corresponding to which MinXSS this is | |
| adcs_gain_detuned | – | ADCS Gain Detuned | |
| adcs_using_sps | – | ADCS Using LASP fine sun sensor (SPS). 1 if yes, 0 if no. | |
| paramsethdrbyte1 | – | Parameter Set Header Byte 1 | |
| paramsethdrbyte2 | – | Parameter Set Header Byte 2 | |
| sd_writectrlblockaddr | – | SD Write Control Block Address | |
| lockout_timeoutcounter | s (seconds) |
Lockout Timeout Countdown after initial deployment | |
| contacttx_timeoutcounter | s (seconds) |
Contact Transmit Timeout Countdown | |
| battery_heatersetpoint | ºC
(Celsius) |
Battery Heater Setpoint | |
| instrument_heatersetpoint | ºC
(Celsius) |
Instrument Heater Setpoint, disabled when set to 255 | |
| cdh_batt_v | V
(volts) |
CDH measured battery voltage monitor | |
| cdh_batt_v2 | V
(volts) |
CDH measured battery voltage monitor #2 | |
| cdh_5v | V
(volts) |
CDH 5.0V Monitor | |
| cdh_3v | V
(volts) |
CDH 3.5V Monitor | |
| cdh_temp | ºC
(Celsius) |
CDH Temperature Monitor | |
| cdh_enables | – | CDH Bit Flags for Power Switch Enables, decoded in subsequent variables | |
| enable_comm | – | Enable Communications board. 1 = enabled, 0 = disabled | |
| enable_adcs | – | Enable attitude determination and control system. 1 = enabled, 0 = disabled | |
| enable_sps_xps | – | Enable SPS and XP. 1 = enabled, 0 = disabled | |
| enable_x123 | – | Enable X123 primary science instrument. 1 = enabled, 0 = disabled | |
| enable_batt_heater | – | Enable Battery Heater. 1 = enabled, 0 = disabled | |
| enable_ant_deploy | – | Enable Antenna Deploy. 1 = enabled, 0 = disabled | |
| enable_sa_deploy | – | Enable solar arrays Deploy. 1 = enabled, 0 = disabled | |
| enable_inst_heater | – | Enable instrument Heater. 1 = enabled, 0 = disabled | |
| enable_spare | – | Enable Spare. 1 = enabled, 0 = disabled | |
| enable_sdcard | – | Enable SD Card. 0 = enabled, 1 = disabled. Notice the logic here is actually reversed. Tag name really should be disable_sdcard. | |
| cdh_i2c_err | – | CDH I2C Bus Error Code | |
| cdh_rtc_err | – | CDH RTC Bus Error Code | |
| cdh_spi_sd_err | – | CDH SPI SD Bus Error Code | |
| cdh_uart1_err | – | CDH UART1 Bus Error Code | |
| cdh_uart2_err | – | CDH UART2 Bus Error Code | |
| cdh_uart3_err | – | CDH UART3 Bus Error Code | |
| cdh_uart4_err | – | CDH UART4 Bus Error Code | |
| radio_counter | – | Li-1 radio telemetry packet counter | |
| radio_temp | ºC
(Celsius) |
Temperature of AstroDev Li-1 Internal MSP430 Microcontroller | |
| radio_time | s
(seconds) |
Radio Time | |
| radio_rssi | dB
(decibels) |
Radio Received Signal Strength Indication | |
| radio_received | B (bytes) |
Number of Bytes Received by Radio | |
| radio_transmitted | B (bytes) |
Number of Bytes Transmitted by Radio | |
| comm_last_cmd | – | COMM Last Command Number | |
| comm_last_status | – | COMM Status for Last Command. 2 = Acknowledged. 102 = Not acknowledged. | |
| comm_temp | ºC
(Celsius) |
COMM Board Temperature Monitor | |
| mb_temp1 | ºC
(Celsius) |
MotherBoard Temperature Monitor (top) | |
| mb_temp2 | ºC
(Celsius) |
MotherBoard Temperature Monitor (bottom) | |
| eps_temp1 | ºC
(Celsius) |
Electric Power System Board Temperature Monitor (top) | |
| eps_temp2 | ºC
(Celsius) |
Electric Power System Board Temperature Monitor (bottom) | |
| eps_fg_volt | V
(volts) |
Electric Power System Fuel Gauge Battery Voltage | |
| eps_fg_soc | %
(percent) |
Electric Power System Fuel Gauge State of Charge (0-100%) | |
| eps_sa1_cur | mA (milliamps) |
EPS Solar Array -Y Regulator Current | |
| eps_sa1_volt | V
(volts) |
EPS Solar Array -Y Regulator Voltage | |
| eps_sa2_cur | mA (milliamps) |
EPS Solar Array +X Regulator Current | |
| eps_sa2_volt | V
(volts) |
EPS Solar Array +X Regulator Voltage | |
| eps_sa3_cur | mA (milliamps) |
EPS Solar Array +Y Regulator Current | |
| eps_sa3_volt | V
(volts) |
EPS Solar Array +Y Regulator Voltage | |
| eps_batt_cur | mA (milliamps) |
EPS Battery Load Current | |
| eps_batt_volt | V
(volts) |
EPS Battery Load Voltage | |
| eps_3v_cur | mA (milliamps) |
EPS 3.5V Load Current | |
| eps_3v_volt | V
(volts) |
EPS 3.5V Load Voltage | |
| eps_5v_cur | mA (milliamps) |
EPS 5.0V Load Current | |
| eps_5v_volt | V
(volts) |
EPS 5.0V Load Voltage | |
| eps_sa1_temp | ºC
(Celsius) |
EPS Solar Array -Y Temperature Monitor | |
| eps_sa2_temp | ºC
(Celsius) |
EPS Solar Array +X Temperature Monitor | |
| eps_sa3_temp | ºC
(Celsius) |
EPS Solar Array +Y Temperature Monitor | |
| eps_batt_volt2 | V
(volts) |
EPS Battery Voltage #2 Monitor | |
| eps_batt_charge | mA (milliamps) |
EPS Battery Charge Current Monitor | |
| eps_batt_temp1 | ºC
(Celsius) |
EPS Battery Temperature #1 Monitor (top) | |
| eps_batt_discharge | mA (milliamps) |
EPS Battery Discharge Current Monitor | |
| eps_batt_temp2 | ºC
(Celsius) |
EPS Battery Temperature #2 Monitor (bottom) | |
| sps_xps_pwr_3v | V
(volts) |
SPS-XPS Power Board I2C 3.5V Monitor | |
| sps_xps_pwr_temp | ºC
(Celsius) |
SPS and XP Power Board Temperature | |
| sps_xps_pwr_d5v | V
(volts) |
SPS and XP Power Board Digital 5V Monitor | |
| sps_xps_pwr_a5v | V
(volts) |
SPS and XP Power Board Analog 5V Monitor | |
| sps_xps_temp | ºC
(Celsius) |
SPS Temperature Monitor | |
| xps_xps_temp | ºC
(Celsius) |
XP Temperature Monitor | |
| x123_brd_temp | ºC
(Celsius) |
X123 Electronics Board Temperature | |
| xact_commandrejectstatus | – | XACT Command Reject Status. 0=OK, 1=BAD_APID, 2=BAD_OPCODE, 3=BAD_DATA, 4=ERROR4, 5=ERROR5, 6=ERROR6, 7=ERROR7, 8=CMD_SRVC_OVERRUN, 9=CMD_APID_OVERRU | |
| sps_xps_dac1 | V
(volts) |
ASIC Gain | |
| xps_data | DN (data numbers) |
Raw Data for XP Diode | |
| dark_data | DN (data numbers) |
Raw Data for Dark Diode | |
| sps_sum | fC
(femtocolombs) |
SPS Sum after dark corrected and gain applied | |
| sps_x | DN
(data numbers) |
SPS X Position (Body Y; multiply by 3 and divide by 1e4 to get degrees) | |
| sps_y | DN
(data numbers) |
SPS Y Position (Body Z; multiply by 3 and divide by 1e4 to get degrees) | |
| x123_fast_count | counts | X123 Fast Shaper Counts Normalized | |
| x123_slow_count | counts | X123 Slow Shaper Counts Normalized | |
| x123_det_temp | K
(kelvin) |
X123 Detector Temperature | |
| xact_p5vtrackervoltage | V
(volts) |
Tracker (all electronics) +5 Volt Monitor | |
| xact_p12vbusvoltage | V
(volts) |
Bus +12 Volt Monitor | |
| xact_trackerdetectortemp | ºC
(Celsius) |
XACT Tracker Detector Temperature | |
| xact_wheel2temp | ºC
(Celsius) |
Reaction Wheel 2 (X) Temperature | |
| xact_meassunbodyvectorx | – | Measured Sun-Body Unit Vector X | |
| xact_meassunbodyvectory | – | Measured Sun-Body Unit Vector Y | |
| xact_meassunbodyvectorz | – | Measured Sun-Body Unit Vector Z | |
| xact_commandstatus | – | XACT ADCS Command Status. 0=OK, 1=BAD_APID, 2=BAD_OPCODE, 3=BAD_DATA, 4=ERROR4, 5=ERROR5, 6=ERROR6, 7=ERROR7, 8=CMD_SRVC_OVERRUN, 9=CMD_APID_OVERRUN | |
| xact_commandacceptcount | – | XACT Command Accept Count | |
| xact_commandacceptapid | – | XACT Command Accept APID (byte 1) | |
| xact_commandacceptopcode | – | XACT Command Accept OpCode (byte 2) | |
| xact_commandrejectcount | – | Command Reject Count | |
| xact_commandrejectapid | – | Command Reject APID (byte 1) | |
| xact_commandrejectopcode | – | Command Reject OpCode (byte 2) | |
| xact_wheel1estdrag | rad/s/s
(radians per second squared) |
Wheel 1 (-Y) Estimated Drag Due To Internal Friction | |
| xact_wheel2estdrag | rad/s/s
(radians per second squared) |
Wheel 2 (+X) Estimated Drag Due To Internal Friction | |
| xact_wheel3estdrag | rad/s/s
(radians per second squared) |
Wheel 3 (+Z) Estimated Drag Due To Internal Friction | |
| xact_wheel1measspeed | rad/s (radians per second) |
Wheel 1 (-Y) Measured Speed | |
| xact_wheel2measspeed | rad/s (radians per second) |
Wheel 2 (+X) Measured Speed | |
| xact_wheel3measspeed | rad/s (radians per second) |
Wheel 3 (+Z) Measured Speed | |
| xact_bodyframeratex | rad/s (radians per second) |
Body Frame Rate X | |
| xact_bodyframeratey | rad/s (radians per second) |
Body Frame Rate Y | |
| xact_bodyframeratez | rad/s (radians per second) |
Body Frame Rate Z | |
| xact_lvl0_bitflags | – | Level 0 Bitflags | |
| xact_lvl0_counter | – | Level 0 Counter | |
| xact_lvl0_cmdrejectcount | – | Level 0 Command Reject Count | |
| xact_lvl0_cmdacceptcount | – | Level 0 Command Accept Count | |
| checkbytes | – | Housekeeping Packet Checkbytes | |
| syncword | – | Packet Sync Word (0xA5A5) | |
| checkbytes_calculated | – | Checkbytes Calculated | |
| checkbytes_valid | – | Checkbytes Valid | |
| time_jd | Calendar date and time | Julian date | |
| time_iso | Calendar date and time | International standards organization time format (yyyy-mm-ddThh:mm:ssZ) | |
| time_human | Calendar date and time | Same as time_iso but with the T and Z removed | |
| sci | apid | – | 11-bit Application Process Identifier |
| seq_flag | – | Sequence Flag | |
| seq_count | – | 14-bit Source Sequence Counter | |
| data_length | – | Packet Data Length | |
| time | GPS seconds | Time of science packet generation according to uncorrected spacecraft clock in GPS time format | |
| cdh_info | – | CDH State and SC Mode Bitfield Decoded in Subsequent Variables | |
| cdh_state | – | CDH State Bitfield Decoded in Subsequent Variables | |
| spacecraft_mode | – | Spacecraft Mode Bitfield, 1 = phoenix, 2 = safe, 4 = science | |
| eclipse_state | – | Eclipse State Bitfield, onboard determination of (1) in eclipse or (0) in sun | |
| adcs_info | – | ADCS XACT FSW Bitfields Decoded in Subsequent Variables | |
| adcs_state | – | ADCS Sun Point State. 2 = search initialization 3 = searching, 4 = waiting 5 = converging, 6 = on sun, 7 = not active | |
| adcs_attitude_valid | – | ADCS attitude solution. 1 if obtained, 0 if not. | |
| adcs_refs_valid | – | ADCS validity of ephemeris. 1 if valid, 0 if not. | |
| adcs_time_valid | – | ADCS Time Valid. 1 if valid, 0 if not. | |
| adcs_recommend_sun | – | ADCS recommend sun (coarse) point. 1 if yes, 0 if no. | |
| adcs_mode | – | ADCS Mode, 0 = sun point, 1 = fine reference point | |
| xps_data | DN (data numbers) |
Raw Data for XP Diode | |
| dark_data | DN
(data numbers) |
Raw Data for Dark Diode | |
| sps_data | DN
(data numbers) |
SPS Quad Diode Data (4 x 32-bits/diode) | |
| sps_xp_integration_time | s
(seconds) |
Number of 1-sec integrations in SPS and XP totals | |
| x123_fast_count | counts | X123 Fast Shaper Counts Normalized | |
| x123_slow_count | counts | X123 Slow Shaper Counts Normalized | |
| x123_gp_count | counts | X123 General Purpose Counter | |
| x123_accum_time | ms
(milliseconds) |
X123 Accumulation Time | |
| x123_live_time | ms
(milliseconds) |
X123 Live Time | |
| x123_real_time | ms
(milliseconds) |
X123 Real Time | |
| x123_hv | V
(volts) |
X123 High Voltage Monitor | |
| x123_det_temp | K
(kevlin) |
X123 Detector Temperature | |
| x123_brd_temp | ºC
(Celsius) |
X123 Electronics Board Temperature | |
| x123_flags | – | X123 Flags | |
| x123_read_errors | – | Number of UART2 Errors while Reading X123 | |
| x123_radio_flag | – | Number of transmissions during X123 integration | |
| x123_write_errors | – | Number of UART1 Errors while Writing X123 | |
| x123_cmp_info | B
(bytes) |
X123 Compression Information, 0=no compression | |
| x123_spect_len | B
(bytes) |
X123 Spectrum Data Length | |
| x123_group_count | – | Count for the X123 Data: 0 = First | |
| x123_spectrum | counts | X123 Spectrum Data | |
| checkbytes | – | Science Packet Checkbytes | |
| syncword | – | Packet Sync Word (0xA5A5) | |
| checkbytes_calculated | – | Checkbytes Calculated | |
| checkbytes_valid | – | Checkbytes Valid | |
| time_jd | Calendar date and time | Julian date | |
| time_iso | Calendar date and time | International standards organization time format (yyyy-mm-ddThh:mm:ssZ) | |
| time_human | Calendar date and time | Same as time_iso but with the T and Z removed | |
| log | apid | – | 11-bit Application Process Identifier |
| seq_flag | – | Sequence Flag | |
| seq_count | – | 14-bit Source Sequence Counter | |
| data_length | – | Packet Data Length | |
| time | GPS seconds | Time of science packet generation according to uncorrected spacecraft clock in GPS time format | |
| checkbytes | – | Log Message Packet Checkbytes | |
| syncword | – | Packet Sync Word (0xA5A5) | |
| message | – | 46 characters in message, unused char filled with NULL | |
| time_human | Calendar date and time | Same as time_iso but with the T and Z removed |
