2.5.0
spase://NASA/NumericalData/MMS/1/FIELDS/FGM/Survey/Level2/PT0.125S
MMS 1 Flux Gate Magnetometer (FGM) DC Magnetic Field, Level 2 (L2), Survey Mode, 8 or 16 Sample/s, v4/5 Data
MMS1_FGM_SRVY_L2
https://doi.org/10.48322/mxbx-r466
2023-03-04T12:34:56.789
2021-04-27T15:38:11
Only known prior ReleaseDate of the metadata
2022-08-04T12:34:56.789
Added DOI and PublicationInfo minted by LFB, updated the RepositoryID, updated the SPDF MetadataContact Person to Robert M. Candey, metadata updated to SPASE 2.4.1, reviewed by LFB 20220803
2023-03-04T12:34:56.789
Standardized the ResourceName Format, Set AlternateName equal to the ProductKey, Revised the Acknowledgement, PublicationInfo Authors, and Contact Person list per request of the MMS FGM team, metadata updated to SPASE 2.5.0, reviewed by LFB 20230304
The Fluxgate Magnetometers (FGM) on Magnetospheric Multiscale consist of a traditional Analog Fluxgate Magnetometer (AFG) and a Digital Fluxgate magnetometer (DFG). The dual magnetometers are operated as a single instrument providing a single intercalibrated data product. Range changes occur at different times on the two instruments so the gains checked each periapsis can be carried out unambiguously to apoapsis. Cross correlation of calibration parameters can separate causes of the any apparent calibration changes. Use of Electron Drift Instrument (EDI) to determine the field along the rotation axis allows accurate monitoring of the zero levels along the rotation axis. Prior to launch the magnetometers were calibrated at the Technical University, Braunschweig, except for the AFG magnetometers on MMS3 and MMS4, which were calibrated at UCLA. Both sets of sensors are operated for the entire MMS orbit, with slow survey (8 samples per second) outside of the Region of Interest (ROI), and fast survey (16 samples per second) inside the ROI. Within the ROI, burst mode data (128 samples per second) are also acquired. A detailed description of the MMS fluxgate magnetometers, including science objectives, instrument description, calibration, magnetic cleanliness program, and data flow can be found at http://link.springer.com/article/10.1007%2Fs11214-014-0057-3 (DOI 10.1007/s11214-014-0057-3). Additional information can also be found at http://www-spc.igpp.ucla.edu/ssc/mms (UCLA), and http://www.iwf.oeaw.ac.at/de/forschung/erdnaher-weltraum/mms/dfg (IWF, Graz). For the purpose of creating a unified FGM Level 2 data product, burst mode data is taken from DFG and survey mode data is taken from AFG. Because AFG and DFG are cross-calibrated on an orbit-averaged basis, small differences in offset may be observed between Level 2 burst and survey mode data. Consequently, any differences are within the error of the measurement. Based on preliminary analysis of the data, the absolute error within the Region of Interest (ROI) is estimated to be no more than 0.1 nT in the spin-plane, 0.15 nT along the spin-axis and 0.2 nT in total magnitude.
Please acknowledge C.T. Russell, W. Magnes, H. Wei, K.R. Bromund, F. Plaschke, D. Fischer, R.J. Strangeway, H.K. Leinweber, H.U. Eichelberger, B.G. Huang, G. Lu, and J.L. Burch for use of these data
Russell, Christopher, T.; Magnes, Werner; Wei, Hanying; Bromund, Kenneth, R.; Plaschke, Ferdinand; Fischer, David; Strangeway, Robert, J.; Leinweber, Hannes, Karl; Eichelberger, Hans, Ulrich; Huang, B.G.; Le, Guan; Burch, James, L.
2022-01-01T00:00:00
NASA Space Physics Data Facility
spase://SMWG/Person/Christopher.T.Russell
InstrumentLead
CoInvestigator
spase://SMWG/Person/Werner.Magnes
InstrumentLead
CoInvestigator
spase://SMWG/Person/Hanying.Wei
Contributor
Scientist
spase://SMWG/Person/Kenneth.R.Bromund
Contributor
TechnicalContact
spase://SMWG/Person/Ferdinand.Plaschke
Contributor
Scientist
spase://SMWG/Person/David.Fischer
Contributor
InstrumentScientist
spase://SMWG/Person/Robert.J.Strangeway
Contributor
Scientist
spase://SMWG/Person/Hannes.Karl.Leinweber
InstrumentScientist
spase://SMWG/Person/Hans.Ulrich.Eichelberger
Contributor
Scientist
spase://SMWG/Person/B.G.Huang
InstrumentScientist
spase://SMWG/Person/Guan.Le
Scientist
spase://SMWG/Person/James.L.Burch
PrincipalInvestigator
spase://SMWG/Person/MMS_SDC_POC
HostContact
spase://SMWG/Person/Robert.M.Candey
MetadataContact
spase://SMWG/Person/Lee.Frost.Bargatze
MetadataContact
The Magnetospheric Multiscale (MMS) Mission home page at Goddard Space Flight Center (GSFC)
https://mms.gsfc.nasa.gov/
The Magnetospheric Multiscale (MMS) Mission Home Page hosted by the Goddard Space Flight Center (GSFC).
Data Caveats and Current Release Notes at LASP MMS SDC
https://lasp.colorado.edu/mms/sdc/public/datasets/fields/
The Magnetospheric Multiscale (MMS) Mission home page hosted by the Laboratory of Atmospheric and Space Physics, Science Data Center (LASP, SDC) at the University of Colorado, Boulder.
The MMS Graz FGM Team home page at IWF, OAW
https://www.oeaw.ac.at/en/iwf/forschung/weltraummissionen/laufende-missionen/mms/dfg
The Magnetospheric Multiscale (MMS) Flux Gate Magnetometer (FGM) home page hosted by the Institut fur Weltraumforschung (IWF), Osterreichische Akademie der Wissenschaften (OAW).
spase://VSPO/NumericalData/MMS/1/FIELDS/FGM/Survey/Level2/PT0.125S
spase://SMWG/Repository/UCOLO/LASP/MMS_SDC
Online
Open
FTPS from the MMS SDC (not with most browsers)
ftps://lasp.colorado.edu/mms/sdc/public/data/mms1/fgm/srvy/l2/
In CDF via ftp from the MMS Science Data Center
HTTPS from the MMS SDC
https://lasp.colorado.edu/mms/sdc/public/data/mms1/fgm/srvy/l2/
In CDF via http from the MMS Science Data Center
CDF
None
Please acknowledge C.T. Russell, W. Magnes, H. Wei, K.R. Bromund, F. Plaschke, D. Fischer, R.J. Strangeway, H.K. Leinweber, H.U. Eichelberger, B.G. Huang, G. Lu, and J.L. Burch. Also please acknowledge the data providers and CDAWeb when using these data.
spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb
Online
Open
FTPS from SPDF (not with most browsers)
ftps://spdf.gsfc.nasa.gov/pub/data/mms/mms1/fgm/srvy/l2/
In CDF via ftp from SPDF
HTTPS from SPDF
https://spdf.gsfc.nasa.gov/pub/data/mms/mms1/fgm/srvy/l2/
In CDF via http from SPDF
CDAWeb
https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=MMS1_FGM_SRVY_L2&index=sp_phys
MMS1_FGM_SRVY_L2
Access to ASCII, CDF, and plots via NASA/GSFC CDAWeb
CDF
None
Please acknowledge C.T. Russell, W. Magnes, H. Wei, K.R. Bromund, F. Plaschke, D. Fischer, R.J. Strangeway, H.K. Leinweber, H.U. Eichelberger, B.G. Huang, G. Lu, and J.L. Burch. Also please acknowledge the data providers and CDAWeb when using these data.
spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb
Online
Open
CDAWeb HAPI Server
https://cdaweb.gsfc.nasa.gov/hapi
MMS1_FGM_SRVY_L2
Web Service to this product using the HAPI interface
CSV
Please acknowledge C.T. Russell, W. Magnes, H. Wei, K.R. Bromund, F. Plaschke, D. Fischer, R.J. Strangeway, H.K. Leinweber, H.U. Eichelberger, B.G. Huang, G. Lu, and J.L. Burch. Also please acknowledge the data providers and CDAWeb when using these data.
Calibrated
spase://SMWG/Instrument/MMS/1/FIELDS/FGM
MagneticField
2015-09-01T00:00:00.000
-P2M
PT0.125S
Earth.Magnetosheath
Earth.Magnetosphere
Earth.Magnetosphere.Magnetotail
Earth.Magnetosphere.Main
Earth.Magnetosphere.RadiationBelt
Earth.NearSurface.EquatorialRegion
Earth.NearSurface.Plasmasphere
Heliosphere.NearEarth
Epoch
Epoch
Interval centered time tag (TBC)
This parameter exhibits an increasing monotonic progression.
PT0.125S
ns
1.0e-9>s
mms1_fgm_srvy_Epoch
LinearScale
2010-01-01T00:00:00.000000000
2030-01-01T00:00:00.999000000
9999-12-31T23:59:59.999999999
Temporal
mms1_fgm_b_gse_srvy_l2
Time series defined by using: EPOCH
mms1_fgm_b_gse_srvy_l2
Magnetic field vector in Geocentric Solar Ecliptic (GSE) cartesian coordinates plus Btotal (8 or 16 samples/s)
PT0.125S
nT
1.0e-9>T
Cartesian
GSE
TimeSeries
e13.5
LinearScale
4
Bx GSE
1
-17000.0
By GSE
2
-17000.0
Bz GSE
3
-17000.0
Bt
4
0.0
17000.0
-1.0e+31
Vector
Magnetic
mms1_fgm_b_gsm_srvy_l2
Time series defined by using: EPOCH
mms1_fgm_b_gsm_srvy_l2
Magnetic field vector in Geocentric Solar Magnetospheric (GSM) cartesian coordinates plus Btotal (8 or 16 samples/s)
PT0.125S
nT
1.0e-9>T
Cartesian
GSM
TimeSeries
e13.5
LinearScale
4
Bx GSM
1
-17000.0
By GSM
2
-17000.0
Bz GSM
3
-17000.0
Bt
4
0.0
17000.0
-1.0e+31
Vector
Magnetic
mms1_fgm_b_dmpa_srvy_l2
Time series defined by using: EPOCH
mms1_fgm_b_dmpa_srvy_l2
Magnetic field vector in Despun MPA-aligned cartesian coordinates plus Btotal (8 or 16 samples/s)
During nominal operations in the region of interest, DMPA is within 3 degrees of GSE.
PT0.125S
nT
1.0e-9>T
Cartesian
GSE
TimeSeries
e13.5
LinearScale
4
Bx DMPA
1
-17000.0
By DMPA
2
-17000.0
Bz DMPA
3
-17000.0
Bt
4
0.0
17000.0
-1.0e+31
Vector
Magnetic
mms1_fgm_b_bcs_srvy_l2
Time series defined by using: EPOCH
mms1_fgm_b_bcs_srvy_l2
Magnetic field vector in Body Coordinate System cartesian coordinates plus Btotal (8 or 16 samples/s)
PT0.125S
nT
1.0e-9>T
Cartesian
SC
TimeSeries
e13.5
LinearScale
4
Bx BCS
1
-17000.0
By BCS
2
-17000.0
Bz BCS
3
-17000.0
Bt
4
0.0
17000.0
-1.0e+31
Vector
Magnetic
mms1_fgm_flag_srvy_l2
Time series defined by using: EPOCH
mms1_fgm_flag_srvy_l2
Data quality flag: 0=No identified problems, non-zero=blank out the data
bit definitions: 0: TBD, 1: TBD, 2: user flagged, 3: TBD, 4: B1 saturated, 5: B2 saturated, 6: B3 saturated, 7: range-change glitch, 8-31: TBD
PT0.125S
mms1_fgm_flag_srvy_l2
z10.8
LinearScale
0
4294967281
4294967295
InstrumentMode
Epoch_state
Epoch_state
Default time
This parameter exhibits an increasing monotonic progression.
PT0.125S
ns
1.0e-9>s
Epoch_state
LinearScale
1990-01-01T00:00:00.000000000
2030-01-01T00:00:00.999000000
9999-12-31T23:59:59.999999999
Temporal
mms1_fgm_r_gse_srvy_l2
Time series defined by using: EPOCH_STATE
mms1_fgm_r_gse_srvy_l2
Definitive position in GSE coordinates, 30-s time resolution
PT0.125S
km
1.0e3>m
Cartesian
GSE
TimeSeries
e12.2
LinearScale
4
X GSE
1
Y GSE
2
Z GSE
3
R
4
-1.0e+06
1.0e+06
-1.0e+31
Vector
Positional
mms1_fgm_r_gsm_srvy_l2
Time series defined by using: EPOCH_STATE
mms1_fgm_r_gsm_srvy_l2
Definitive position in GSM coordinates, 30-s time resolution
PT0.125S
km
1.0e3>m
Cartesian
GSM
TimeSeries
e12.2
LinearScale
4
X GSM
1
Y GSM
2
Z GSM
3
R
4
-1.0e+06
1.0e+06
-1.0e+31
Vector
Positional
mms1_fgm_hirange_srvy_l2
Time series defined by using: EPOCH
mms1_fgm_hirange_srvy_l2
Magnetic field range setting: 1=High Range, 0=Low Range
PT0.125S
mms1_fgm_hirange_srvy_l2
i5
LinearScale
0
2
255
Median
Other
mms1_fgm_bdeltahalf_srvy_l2
Time series defined by using: EPOCH
mms1_fgm_bdeltahalf_srvy_l2
Delta from center time to sample start/finish
PT0.125S
s
1>s
mms1_fgm_bdeltahalf_srvy_l2
e13.5
0.001
1.0
-1.0e+31
Median
Temporal
mms1_fgm_stemp_srvy_l2
Time series defined by using: EPOCH
mms1_fgm_stemp_srvy_l2
Sensor temperature smoothed four times with 6-pt boxcar filter (/edge_truncate), linear interpolated to mag times, then smoothed with a 798-pt boxcar
Sensor Temperature smoothed four times with 6-pt boxcar filter (/edge_truncate), linear interpolated to mag times, then smoothed with 798-pt boxcar, t_maxgap=240, t_bmaxgap=240.
PT0.125S
°C
1>s^-1
mms1_fgm_stemp_srvy_l2
e13.5
LinearScale
-1000.0
1000.0
NaN
Scalar
Other
mms1_fgm_etemp_srvy_l2
Time series defined by using: EPOCH
mms1_fgm_etemp_srvy_l2
Electronics temperature smoothed four times with 6-pt boxcar filter (/edge_truncate), linear interpolated to mag times, then smoothed with a 798-pt boxcar
Electronics Temperature smoothed four times with 6-pt boxcar filter (/edge_truncate), linear interpolated to mag times, then smoothed with 798-pt boxcar, t_maxgap=240, t_bmaxgap=240.
PT0.125S
°C
mms1_fgm_etemp_srvy_l2
e13.5
LinearScale
-1000.0
1000.0
NaN
Scalar
Other
mms1_fgm_mode_srvy_l2
Time series defined by using: EPOCH
mms1_fgm_mode_srvy_l2
Median rate (samples/s) of the current instrument mode. This rate is not necessarily equal to the rate of the L2 data, which may have been downsampled.
8=slow, 16=fast, 128=f128. Note that 128 samples/s L1A data is decimated to 16 samples/s in srvy L1B
PT0.125S
s^-1
mms1_fgm_mode_srvy_l2
e13.5
2.0
200.0
-1.0e+31
InstrumentMode
mms1_fgm_rdeltahalf_srvy_l2
Time series defined by using: EPOCH_STATE
mms1_fgm_rdeltahalf_srvy_l2
One half of the median delta between ephemeris samples
PT0.125S
s
1>s
mms1_fgm_rdeltahalf_srvy_l2
e13.5
1.0
100.0
-1.0e+31
Median
Temporal