Data Access
H+, O+, He+ and He++ upflowing fluxes and statistical uncertainties processed by the TIMAS science team.These data were used in preparing several papers, see Information URLs.
Includes also non-TIMAS Data:
UT,
altitude,
invariant latitude,
L shell,
magnetic local time,
geomagnetic latitude (signed - n/s hemisphere),
average magnetic field vector in GSM coordinates at Polar (uses KH's co-ord conversion code),
spacecraft potential from EFI data base,
solar zenith angles at each end of the field line,
time delayed solar wind parameters from WIND (Using KH's database) interpolated across data gaps of less than 10 minutes,
IMF in GSM,
solar wind dynamic pressure (nPa),
solar wind density (/cc),
solar wind velocity (km/sec).
This is a summary data base.It does not contain detailed energy step and pitch angle information for each data point. Extends over all altitudes, invariant latitudes and MLT. Below altitude of 4.0 Re 2 spin resolution (12s), above altitude of 4.0 Re 4 spin resolution (24s).
Reference:E.G. Shelley et al., The Toroidal Imaging Mass-Angle Spectrograph (TIMAS) for the Polar Mission, Sp. Sci. Rev, Vol 71, pp 497-530, 1995.
Version:2.2.9
H+, O+, He+ and He++ upflowing fluxes and statistical uncertainties processed by the TIMAS science team.These data were used in preparing several papers, see Information URLs.
Includes also non-TIMAS Data:
UT,
altitude,
invariant latitude,
L shell,
magnetic local time,
geomagnetic latitude (signed - n/s hemisphere),
average magnetic field vector in GSM coordinates at Polar (uses KH's co-ord conversion code),
spacecraft potential from EFI data base,
solar zenith angles at each end of the field line,
time delayed solar wind parameters from WIND (Using KH's database) interpolated across data gaps of less than 10 minutes,
IMF in GSM,
solar wind dynamic pressure (nPa),
solar wind density (/cc),
solar wind velocity (km/sec).
This is a summary data base.It does not contain detailed energy step and pitch angle information for each data point. Extends over all altitudes, invariant latitudes and MLT. Below altitude of 4.0 Re 2 spin resolution (12s), above altitude of 4.0 Re 4 spin resolution (24s).
Reference:E.G. Shelley et al., The Toroidal Imaging Mass-Angle Spectrograph (TIMAS) for the Polar Mission, Sp. Sci. Rev, Vol 71, pp 497-530, 1995.
| Role | Person | |
|---|---|---|
| 1. | PrincipalInvestigator | spase://SMWG/Person/W.K.Peterson |
Description of the data base included in this data set
Solar-minimum quiet-time ion energization and outflow in dynamic boundary related coordinates, W.K. Peterson, L. Andersson, B.C. Callahan, H.L. Collin, J.D. Scudder, and A.W. Yau, To appear in J. Geophys. Res., 2008.
Quiet time solar illumination effects on the fluxes and characteristic energies of ionospheric outflow, W.K. Peterson, H.L. Collin, O.W. Lennartsson and A.W. Yau, J. Geophys. Res., 111, A11S05, doi:10.1029/2005JA011596, 2006.
Solar wind control of Earth's H+ and O+ outflow rates in the 15-eV to 33-keV energy range, O.W Lennartsson, W.K. Peterson, and H.L. Collin, J. Geophys. Res., Vol. 109, No. A12, A12212 10.1029/2004JA010690, 15 December 2004.
Polar/TIMAS Observations of Suprathermal Ion Outflow During Solar Minimum Conditions, W.K. Peterson, H.L. Collin, A.W. Yau, and O.W. Lennartsson, J. Geophys. Res., 106, 6059, 2001.
The Seasonal Variation of Auroral Ion Beams, H.L. Collin, W.K. Peterson, O.W. Lennartsson, and J.F. Drake, Geophysical Research Letters, 25, 4071, 1998.
In CDF via HTTP from SPDF
PO_H2_TIM
Repository of Polar TIMAS key parameter data in CDF format at LASP
NSSDC standard-reference time value at the center of the accumulation interval.
NSSDC standard-reference time value at the center of the accumulation interval.
NSSDC standard-reference time value at the center of the accumulation interval.
NSSDC standard-reference time value at the center of the accumulation interval.
H+ Fluence (upward directed flux) at the altitude measured (R) with loss cone correction.
O+ Fluence (upward directed flux) at the altitude measured (R) with loss cone correction.
He+ Fluence (upward directed flux) at the altitude measured (R) with loss cone correction.
He++ Fluence (upward directed flux) at the altitude measured (R) with loss cone correction.
One standard deviation (sigma) of H+ fluence at the altitude measured (R)
One standard deviation (sigma) of O+ fluence at the altitude measured (R)
One standard deviation (sigma) of O+ fluence at the altitude measured (R)
One standard deviation (sigma) of He++ fluence at the altitude measured (R)
Net H+ energy flux at the altitude measured (R)
Net O+ energy flux at the altitude measured (R)
Net He+ energy flux at the altitude measured (R)
Net He++ energy flux at the altitude measured (R)
One standard deviation (sigma) of H+ energy flux at the altitude measured (R)
One standard deviation (sigma) of O+ energy flux at the altitude measured (R)
One standard deviation (sigma) of He+ energy flux at the altitude measured (R)
One standard deviation (sigma) of He++ energy flux at the altitude measured (R)
Number of spins accumulated for H+
Number of spins accumulated for O+
Number of spins accumulated for He+
Number of spins accumulated for He++
Solar Zenith angle at the magnetic foot point
Solar Zenith angle at the Conjugate magnetic foot point
Quality of the solar zenith angle (SZA) values: 0=good, 99=invalid
Quality of the conjugate solar zenith angle (SZA) values: 0=good, 99=invalid
A quality flag in the range 0-99 with the following values/meanings:
0 OK.
1 Some data missing.
2 more than 5% data missing
3 not used.
4 not used.
5 Warning flags set.
6 not used.
9 Invalid pitch angles
99 No valid data.
A quality flag in the range 0-99 with the following values/meanings:
0 OK.
1 Some data missing.
2 more than 5% data missing
3 not used.
4 not used.
5 Warning flags set.
6 not used.
9 Invalid pitch angles
99 No valid data.
A quality flag in the range 0-99 with the following values/meanings:
0 OK.
1 Some data missing.
2 more than 5% data missing
3 not used.
4 not used.
5 Warning flags set.
6 not used.
9 Invalid pitch angles
99 No valid data.
A quality flag in the range 0-99 with the following values/meanings:
0 OK.
1 Some data missing.
2 more than 5% data missing
3 not used.
4 not used.
5 Warning flags set.
6 not used.
9 Invalid pitch angles
99 No valid data.
Geocentric Distance
MacIlwain L Parameter
Magnetic Local Time
Local Time
Magnetic Latitude
Invariant Latitude
Average magnetic field vector in GSM coordinates at Polar (Uses
KH's co-ord conversion code).
Space craft potential from EFI
Time delayed Wind IMF Magnetic Field from WIND spacecraft in GSM Coordinates
Time lagged solar wind dynamic pressure from WIND observations
Time lagged solar wind density from WIND observations
Time lagged Solar wind velocity from WIND in GSM Coordinates
Average counts per spin in the fast event counter
Average background counts per spin
TIMAS is operated in one of 3 energy ranges. Energy_Range ID indicates which of the 3 instrumental energy ranges is currently active. Energy Range Identification: 0: Full energy range; 1: Reduced energy range; 2: Low energy range
Quality of the SC potential value obtained from EFI: 0=good 99=invalid
Quality of the IMF_status values: 0=good 99=invalid
Quality of the SW data: 0=good 99=invalid
Quality of the Polar magnetometer data: 0=good 99=invalid
Quality of the Polar ephemeris data: 0=good 99=invalid