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No TEXT global attribute value.
The Electron Losses and Fields Investigation (ELFIN) mission is a space weather mission using three scientific instruments in a 3U+ CubeSat. The instruments measure wave and particle data.
Rev- 2018-07-20
The Electron Losses and Fields Investigation (ELFIN) mission is a space weather mission using three scientific instruments in a 3U+ CubeSat. The instruments measure wave and particle data.
Rev- 2018-07-20
The Electron Losses and Fields Investigation (ELFIN) mission is a space weather mission using three scientific instruments in a 3U+ CubeSat. The instruments measure wave and particle data.
Rev- 2022-09-25
The Electron Losses and Fields Investigation (ELFIN) mission is a space weather mission using three scientific instruments in a 3U+ CubeSat. The instruments measure wave and particle data.
Rev- 2022-09-17
The Electron Losses and Fields Investigation (ELFIN) mission is a space weather mission using three scientific instruments in a 3U+ CubeSat. The instruments measure wave and particle data.
Rev- 2018-07-20
The Electron Losses and Fields Investigation (ELFIN) mission is a space weather mission using three scientific instruments in a 3U+ CubeSat. The instruments measure wave and particle data.
Rev- 2018-07-20
The Electron Losses and Fields Investigation (ELFIN) mission is a space weather mission using three scientific instruments in a 3U+ CubeSat. The instruments measure wave and particle data.
Rev- 2022-09-28
The Electron Losses and Fields Investigation (ELFIN) mission is a space weather mission using three scientific instruments in a 3U+ CubeSat. The instruments measure wave and particle data.
Rev- 2022-09-27
Seconds from T-0, where T-0 is defined by ACS Umbi-pull
Euler rotation angle (degrees) relative to inertial T-0 orientation about the lateral Z-axis 180 degrees from rail
Euler rotation angle (degrees) relative to inertial T-0 orientation about the lateral Y axis that completes the R.H.R. with the other two axes
Euler rotation angle (degrees) relative to inertial T-0 orientation about the longitudinal geometric X-axis out of nose
Roll rate (about the body spin axis, X) in cycles/second (Hz) relative to an inertial frame
Total Angle of Attack (angle between the spin axis (X) and the velocity vector)
Angle between the spin axis (X) and the local IGRF magnetic field vector
DCM is a 3x3xn direction cosine matrix expressing the payload body frame (X-axis out of nose, Z-axis 180 degrees from rail, Y-axis completes R.H.R.) axes as column vectors in the coordinates of the ENU (Local) reference frame. The NIACS body frame is X-axis out of tail, Z-axis towards the rail, Y-axis completes R.H.R., so expressing the payload body frame in the coordinates of the NIACS body frame is achieved by the following matrix: | -1 0 0 | | 0 1 0 | | 0 0 -1 | The ENU (Local) reference frame is the local geodetic East, North, Up coordinate frame
Azimuth (degrees) of spin axis, X, from North in the local geodetic reference frame (clockwise if ENU, counterclockwise if NED)
Elevation (degrees) of spin axis, X, from the local geodetic horizontal plane, tangent to the surface of the Earth
Y_Az: Azimuth (degrees) of lateral axis, Y, from North in the local geodetic reference frame (clockwise if ENU, counterclockwise if NED)
Elevation (degrees) of lateral axis, Y, from the local geodetic horizontal plane, tangent to the surface of the Earth
Azimuth (degrees) of lateral axis, Z, from North in the local geodetic reference frame (clockwise if ENU, counterclockwise if NED)
Elevation (degrees) of lateral axis, Z, from the local geodetic horizontal plane, tangent to the surface of the Earth
Positional data from POSDAT File
Positional data from POSDAT File
Positional data from POSDAT File
see EQS-MPE-EDC-01, Equator-S Data Center Manual, section 4.8 AUX
Produced in accordance with ESDS file specification Reference Document for CSDS CDF File Design, DS-QMW-TN-0003
No caveats
see EQS-MPE-EDC-01, Equator-S Data Center Manual, section 4.2 EDI
Produced in accordance with ESDS file specification Reference Document for CSDS CDF File Design, DS-QMW-TN-0003
No caveats
see EQS-MPE-EDC-01, Equator-S Data Center Manual, section 4.5 EPI
Produced in accordance with ESDS file specification Reference Document for CSDS CDF File Design, DS-QMW-TN-0003 * 1997 Dec - first release v1.0 * 1998 Apr - v1.4 PPDB Production Release * 1998 Dec - v2.0
See also `TEXT' global attr. for Caveats file location
see EQS-MPE-EDC-01, Equator-S Data Center Manual, section 4.3 ICI
Produced in accordance with ESDS file specification Reference Document for CSDS CDF File Design, DS-QMW-TN-0003 none
This file has particularly bad background problems due to intense radiation belts from ~08:00-10:00 UT. This file contains both onboard calculated moments (labeled "raw" with an "*" in the name) and moments calculated on the ground from 3D distributions (labeled "final"). Quantitative analysis should be done with the "final" moments. The raw data should only be used qualitatively for identifying regions and temporal variations. It has large errors, particularly in Vz in spacecraft coordinates. O+ and He+ data should not be used in the magnetosheath or at low L-values, due to background problems. Contact the LI at Lynn.Kistler@unh.edu if the data you need is not available on-line.
see EQS-MPE-EDC-01, Equator-S Data Center Manual, section 4.1 MAM
Produced in accordance with ESDS file specification Reference Document for CSDS CDF File Design, DS-QMW-TN-0003 MAM_SINGLE (128 Hz) and MAM_DUAL (64 Hz) instrument acquisition modes are available
no valid data
see EQS-MPE-EDC-01, Equator-S Data Center Manual, section 4.6 PCD
Produced in accordance with ESDS file specification Reference Document for CSDS CDF File Design, DS-QMW-TN-0003 Record of history of modification of CDF n/a.
partly noisy data noisy data
see EQS-MPE-EDC-01, Equator-S Data Center Manual, section 4.7 SFD
Produced in accordance with ESDS file specification Reference Document for CSDS CDF File Design, DS-QMW-TN-0003 none
The used electron sensitivity 4.3e-7 A/(W/cm2) results from questionable calibration. The resulting upper limits for electron energy fluxes are too high.
No TEXT global attribute value.
Created 10/2021
No TEXT global attribute value.
Created 10/2021
0: +/-8192 nT; 1: +/-65536 nT
(Elements) 0th-2nd: offset; 3rd: RMS; 4th: period; 5th: time seriese; 6th: range 7th: invalid data; 8th:MTQ; 9th:eclipse; 10-13th: reserved; 14th: sampling rate; 15th: attitude.
(Value) 0: good; 1: caution; 2: poor; 3: ignore.
ERG orbit (The L-shell parameters and adiabatic invariants in this file are calculated using the International Radiation Belt Environment Modeling (IRBEM) library (https://craterre.onecert.fr/prbem/irbem/description.html).)
Created 09/2018
The OP77Q model used here is Olson & Pfitzer Quiet (1977)
The OP77Q model used here is Olson & Pfitzer Quiet (1977)
The OP77Q model used here is Olson & Pfitzer Quiet (1977)
The OP77Q model used here is Olson & Pfitzer Quiet (1977)
The OP77Q model used here is Olson & Pfitzer Quiet (1977)
1.The second adiabatic invariant: K=I*Bm^(1/2), in which Bm is magnetic field intensity at mirror point for a given pitch angle. 2.The OP77Q model used here is Olson & Pfitzer Quiet (1977).
The OP77Q model used here is Olson & Pfitzer Quiet (1977)
The OP77Q model used here is Olson & Pfitzer Quiet (1977)
No TEXT global attribute value.
Created 01/2022
b0:see Quality Note, b1:DC-CAL signal ON, b2:AC-CAL(E) signal ON, b3:AC-CAL(B) signal ON, b4:eclipse, b5:magnetorquer operated, b6:ambiguous UTC label, b7-b15:reserved,, b16: Eu or Ev -- saturated, b17:U1, U2 cannot used, b18: V1, V2 cannot used, b19:U1 not biased, b20:U2 not biased, b21:V1 not biased, b22: V2 not biased, b23: WPT-Pre AC-Gain = L (EFD Gain: affected), b24: Slow-sweep, b25: Low time accuracy (0-1 sec delay)
b0:see Quality Note, b1:DC-CAL signal ON, b2:AC-CAL(E) signal ON, b3:AC-CAL(B) signal ON, b4:eclipse, b5:magnetorquer operated, b6:ambiguous UTC label, b7-b15:reserved, b16:Eu or Ev saturated, b17:U1 & U2 cannot used, b18:V1 & V2 cannot used, b19:U1 not biased, b20:U2 not biased, b21:V1 not biased, b22:V2 not biased, b23:WPT-Pre AC-Gain = L, b24:Slow-sweep CAL, b25:0-1sec delay, b26:abs(|Eu|-|Ev|):>1mV/m, b27:Direction(Eu-Ev):>15deg, b28-31:reserved
No TEXT global attribute value.
Created 05/2021
-1:LH,+1:RH
0:(Eu+Ev)/2,1:Eu,2:Ev
0:Eu,1:Ev,2:Bgamma,3:Cal
0:Eu,1:Ev,2:Bgamma,3:Cal
0:FFT1,1:FFT8,2:WAVE
0:DIS,1:ENA
0:OFF,1:ON
b0:see Quality Note, b1:DC-CAL signal ON, b2:AC-CAL(E) signal ON, b3:AC-CAL(B) signal ON, b4:eclipse, b5:magnetorquer operated, b6:ambiguous UTC label, b7-b15:reserved, b16:Eu/Ev saturated, b17:Bg saturated, b18:HFA internal CAL, b19-b30:reserved, b31:HK CDF error
0:low gain, 1:high gain
0:low gain, 1:high gain
No TEXT global attribute value.
Created 05/2021
-1:LH,+1:RH
0:(Eu+Ev)/2,1:Eu,2:Ev
0:Eu,1:Ev,2:Bgamma,3:Cal
0:Eu,1:Ev,2:Bgamma,3:Cal
0:FFT1,1:FFT8,2:WAVE
0:DIS,1:ENA
0:OFF,1:ON
b0:see Quality Note, b1:DC-CAL signal ON, b2:AC-CAL(E) signal ON, b3:AC-CAL(B) signal ON, b4:eclipse, b5:magnetorquer operated, b6:ambiguous UTC label, b7-b15:reserved, b16:Eu/Ev saturated, b17:Bg saturated, b18:HFA internal CAL, b19-b30:reserved, b31:HK CDF error
0:low gain, 1:high gain
0:low gain, 1:high gain
No TEXT global attribute value.
Created 05/2021
-1:LH,+1:RH
0:(Eu+Ev)/2,1:Eu,2:Ev
0:Eu,1:Ev,2:Bgamma,3:Cal
0:Eu,1:Ev,2:Bgamma,3:Cal
0:FFT1,1:FFT8,2:WAVE
0:DIS,1:ENA
0:OFF,1:ON
b0:see Quality Note, b1:DC-CAL signal ON, b2:AC-CAL(E) signal ON, b3:AC-CAL(B) signal ON, b4:eclipse, b5:magnetorquer operated, b6:ambiguous UTC label, b7-b15:reserved, b16:Eu/Ev saturated, b17:Bg saturated, b18:HFA internal CAL, b19-b30:reserved, b31:HK CDF error
0:low gain, 1:high gain
0:low gain, 1:high gain
No TEXT global attribute value.
Created 04/2022
1: Eu, 2: Ev, 3: Eu+Ev, 4: Ev1, 5: Ev2, 6: Ev1+Ev2
0: OBS, 1: CAL
b0(LSB):see Quality Note, b1:DC-CAL signal ON, b2:AC-CAL(E) signal ON, b3:AC-CAL(B) signal ON, b4:eclipse, b5:magnetorquer operated, b6:ambiguous UTC label, b7-b15:reserved, b16:Eu - saturated, b17:Ev - saturated, b18:reserved, b19:time synchronization failed, b20-b31:reserved
1: Balpha, 2: Bbeta, 3: Bgamma, 4: Balpha+Bbeta+Bgamma
0: OBS, 1: CAL
b0 (LSB):see Quality Note, b1:DC-CAL signal ON, b2:AC-CAL(E) signal ON, b3:AC-CAL(B) signal ON, b4:eclipse, b5:magnetorquer operated, b6:ambiguous UTC label, b7-b15:reserved, b16:Balpha - saturated, b17:Bbeta - saturated, b18:Bgamma - saturated, b19:time synchronization failed, b20-b31:reserved
No TEXT global attribute value.
Created 05/2021