| a | north polar |
| b | south polar |
| c | equatorial |
.
1) Naming Conventions
Each filename is build as
CH-ME-2-OVM+<YYYY>-<MM>-<DD>-hh-mm-ss.sss[-<sector>]-<sensor>-<version>.cdf
| <YYYY> | four digits with year | ||||||
| <MM> | two ditits with month of year | ||||||
| <DD> | two digits with day of month | ||||||
| <hh> | two digits with hour | ||||||
| <mm> | two digits with minute | ||||||
| <ss.sss> | f5.2 format with second | ||||||
| <sector> | optional single character to identify
orbit-sector (polar or equatorial), if missing, it's only one file per
day.
|
||||||
| <sensor> | ID of FGM-sensor used to correct S/C-fields, in [1,2]. | ||||||
| <version> | product version number, an integer . |
| Global Option/NETWORK_ENCODING | ||
| Name | Typ | Description |
| Global/gAttributes | ||
| PRODUCT | CDF_CHAR | Product Name |
| TITLE | CDF_CHAR | Title/Name of data-set |
| HISTORY | CDF_CHAR | Modification/Creation info |
| MJD2000 | CDF_INT4 | Modified Julian Day (2000) of first vector |
| GPS_TM_START | CDF_INT4 | GPS time of first vector |
| MSEC_O_START | CDF_INT4 | offset to GPS start time in 1/10 milliseconds |
| GPS_TM_END | CDF_INT4 | GPS time of last vector |
| MSEC_O_END | CDF_INT4 | offset to GPS end time in 1/10 milliseconds |
| NR_OF_RECORDS | CDF_INT4 | Number of Records |
| Global/vAttributes | ||
| INFO, HEADS, VALIDMIN, VALIDMAX, SCALEMIN, SCALEMAX, UNIT, FORMAT, SYSTEM, MODEL, REFRADIUS, SYSTEM, INFO | ||
| Data Record/rVariables | ||
| GPS_TM | CDF_INT4 | GPS time word |
| MSEC_O | CDF_INT2 | offset to GPS time in 1/10 milliseconds |
| GEO_LAT | CDF_REAL8 | Latitude, geocentric geographic, in degree |
| GEO_LON | CDF_REAL8 | Longitude, geocentric geographic, in degree |
| GEO_ALT | CDF_REAL8 | Altitude above reference sphere, in km |
| QUALITY | CDF_BYTE | Quality |
| B_TOTAL | CDF_INT4 | Scalar magnetic field value in 1/100 nT |
| Data Record/zVariables | ||
| Bit(s) Nr. [0..7] | Mask | Comment |
| 0 | 1 | If set, gps flag 'Pulse Sync Reached' is not true, which is derived from CH-OG-1-HK-THK hk data set. In this case monitored OVM quartz frequency (found in CH-ME-1-OVM-HK) is ironed heavily. |
| 1 | 2 | If set, gps/scef flag in OVM derivied status bit, given in CH-ME-1-OVM as entry status (stored in bit 1) is false. In this case the monitored OVM quartz frequency is ironed. |
| 2 | 4 | Indicates missing overlap with HK data information. Isolated events should not harm data quality significantly. |
| 3 | 8 | Indicates that no FGM data is available simultaneously. Corrections will be incomplete. |
| 4 | 16 | Indicates missing regular positions (usable, but less precise) |
| 5 | 32 | Indicates periods with other time confusions (less serios) |
| 6 | 64 | Indicates invalid position values, probably NaN's |
! Skeleton table for the "ch-me-2-ovm" CDF.
! Generated: Monday, 3-Sep-2001 05:00:16
! CDF created/modified by CDF V2.6.4
! Skeleton table created by CDF V2.6.4
#header
CDF NAME: ch-me-2-ovm
DATA ENCODING: NETWORK
MAJORITY: ROW
FORMAT: SINGLE
! Variables G.Attributes V.Attributes Records Dims Sizes
! --------- ------------ ------------ ------- ---- -----
7/0 9 11 0/z 0
#GLOBALattributes
! Attribute Entry Data
! Name Number Type Value
! --------- ------ ---- -----
"PRODUCT" 1: CDF_CHAR { "CH-ME-2-OVM" } .
"TITLE" 1: CDF_CHAR { "CHAMP ME OVM" } .
"HISTORY" 1: CDF_CHAR { "Version: 00-Apr-14" } .
"MJD2000" 1: CDF_INT4 { 0 } .
"GPS_TM_START" 1: CDF_INT4 { 12345678 } .
"MSEC_O_START" 1: CDF_INT4 { 0 } .
"GPS_TM_END" 1: CDF_INT4 { 87654321 } .
"MSEC_O_END" 1: CDF_INT4 { 0 } .
"NR_OF_RECORDS" 1: CDF_INT4 { 1000 } .
#VARIABLEattributes
"INFO"
"UNIT"
"FORMAT"
"VALIDMAX"
"VALIDMIN"
"SCALEMAX"
"SCALEMIN"
"REFRADIUS"
"SAMPLE"
"SYSTEM"
"MODEL"
#variables
! Variable Data Number Record Dimension
! Name Type Elements Variance Variances
! -------- ---- -------- -------- ---------
"GPS_TM" CDF_INT4 1 T
! Attribute Data
! Name Type Value
! -------- ---- -----
"INFO" CDF_CHAR { "GPS time word" }
"UNIT" CDF_CHAR { "in s" }
"FORMAT" CDF_CHAR { "I10" }
"VALIDMIN" CDF_INT4 { 0 } .
! RV values were not requested.
! Variable Data Number Record Dimension
! Name Type Elements Variance Variances
! -------- ---- -------- -------- ---------
"MSEC_O" CDF_INT2 1 T
! Attribute Data
! Name Type Value
! -------- ---- -----
"INFO" CDF_CHAR { "offset to full GPS second" }
"UNIT" CDF_CHAR { "in 1/10 ms" }
"FORMAT" CDF_CHAR { "I10" }
"VALIDMIN" CDF_INT4 { -9999 } .
! RV values were not requested.
! Variable Data Number Record Dimension
! Name Type Elements Variance Variances
! -------- ---- -------- -------- ---------
"GEO_LAT" CDF_REAL8 1 T
! Attribute Data
! Name Type Value
! -------- ---- -----
"INFO" CDF_CHAR { "Lattitude" }
"UNIT" CDF_CHAR { "in degree" }
"FORMAT" CDF_CHAR { "F20.10" }
"VALIDMIN" CDF_INT4 { 90 }
"SYSTEM" CDF_CHAR { "geocentric geographic" } .
! RV values were not requested.
! Variable Data Number Record Dimension
! Name Type Elements Variance Variances
! -------- ---- -------- -------- ---------
"GEO_LON" CDF_REAL8 1 T
! Attribute Data
! Name Type Value
! -------- ---- -----
"INFO" CDF_CHAR { "Longitude" }
"UNIT" CDF_CHAR { "in degree" }
"FORMAT" CDF_CHAR { "F20.10" }
"VALIDMAX" CDF_INT4 { 360 }
"VALIDMIN" CDF_INT4 { -360 }
"SYSTEM" CDF_CHAR { "geocentric geographic" } .
! RV values were not requested.
! Variable Data Number Record Dimension
! Name Type Elements Variance Variances
! -------- ---- -------- -------- ---------
"GEO_ALT" CDF_REAL8 1 T
! Attribute Data
! Name Type Value
! -------- ---- -----
"INFO" CDF_CHAR { "Altitude above reference sphere" }
"UNIT" CDF_CHAR { "in m" }
"FORMAT" CDF_CHAR { "F20.10" }
"VALIDMIN" CDF_INT4 { 0 }
"REFRADIUS" CDF_REAL4 { 6371.2 }
"SYSTEM" CDF_CHAR { "geocentric geographic" } .
! RV values were not requested.
! Variable Data Number Record Dimension
! Name Type Elements Variance Variances
! -------- ---- -------- -------- ---------
"QUALITY" CDF_BYTE 1 T
! Attribute Data
! Name Type Value
! -------- ---- -----
"INFO" CDF_CHAR { "Data quality, zero indicateslack of " -
"known problems " }
"FORMAT" CDF_CHAR { "A" } .
! RV values were not requested.
! Variable Data Number Record Dimension
! Name Type Elements Variance Variances
! -------- ---- -------- -------- ---------
"B_TOTAL" CDF_INT4 1 T
! Attribute Data
! Name Type Value
! -------- ---- -----
"INFO" CDF_CHAR { "Scalar magnetic field" }
"UNIT" CDF_CHAR { "in 1/100 nT" }
"FORMAT" CDF_CHAR { "I10" } .
! RV values were not requested.
#zVariables
! No zVariables.
#end
