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!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!
! SDDL Name: QTEPHEMERIS.SDDL
!
! Purpose: This SDDL file defines the qtephemeris relation.
!
! Modification History:
!
! Date OPR Who Reason
! -------- ------- --- -------------------------------------------------
! 11/15/94 27329 SSS Original implementation
! 06/23/95 28910 NLC Remove SPSS_NODE processing;
! the FACILITY field should be removed from this
! relation the next time the relation is modified.
!
!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!
LANGUAGE FORTRAN, SQL
INCLUDE ZSPSS_USER_TYPES.SDDL
RECORD QTEPHM_TYPE
DESCRIPTION "This relation maintains a catalog of moving target
ephemeris information. One record for each moving
target is contained in this relation. 'qtephemeris'
is only read from and written to by the SPSS EPHFILE/*
programs, but an initial record for each moving
target must be created (using PFORM TEF) prior to
executing the EPHFILE/* programs. The 'qtmchebychev'
relation contains one or more Chebychev polynomial fit
coefficient records for each record in 'qtephemeris'.
See relation 'qtmchebychev' for more information."
FIELD target_id
TYPE TARGET_ID_TYPE
DESCRIPTION "This is a unique name assigned to the target. This
field is used for joins with relations 'qtmchebychev'
and 'qtargets'."
FORM
NAME "TEF"
LABEL "TARGET ID"
END_FORM
RELATED_FIELDS "qtmchebychev.target_id" "qtargets.target_id"
END_FIELD
FIELD ephemeris
TYPE C30
DESCRIPTION "This is the file name of the file containing the
geocentric light-time corrected ephemeris data.
This is a binary file with geocentric earth mean
equator (epoch J2000) cartesian position and velocity
vectors (Kilometers/Seconds). Each state vector also
includes a time in coordinated universal time
expressed in the number of seconds past 1980. The
file is assumed to be located in the path of the VMS
logical SPSSULIB. The file extension is also
assumed to be '.EPC'."
FORM
NAME "TEF"
LABEL "EPHEMERIS"
END_FORM
RELATED_FIELDS "qtmchebychev.eph_file"
END_FIELD
FIELD facility
TYPE C7
DESCRIPTION "This is an obsolete field. "
FORM
NAME "TEF"
LABEL "(SPSS_SC/SPSS_IF)"
END_FORM
DISCRETE "SPSS_IF", "SPSS_SC"
END_FIELD
FIELD start_time
TYPE SOGS_CHAR_TIME_TYPE
DESCRIPTION "This is the ephemeris file start time (uncorrected
for light-travel time)."
FORM
NAME "TEF"
LABEL "EPHEMERIS START"
END_FORM
END_FIELD
FIELD stop_time
TYPE SOGS_CHAR_TIME_TYPE
DESCRIPTION "This is the ephemeris file stop time (uncorrected
for light-travel time)."
FORM
NAME "TEF"
LABEL "EPHEMERIS END"
END_FORM
END_FIELD
FIELD cor_start
TYPE SOGS_CHAR_TIME_TYPE
DESCRIPTION "This is the light-time corrected ephemeris file
start time."
FORM
NAME "TEF"
LABEL "COR EPH START"
END_FORM
END_FIELD
FIELD cor_stop
TYPE SOGS_CHAR_TIME_TYPE
DESCRIPTION "This is the light-time corrected ephemeris file
end time."
FORM
NAME "TEF"
LABEL "COR EPH END"
END_FORM
END_FIELD
FIELD window_file
TYPE YES_NO_FLAG_TYPE
DESCRIPTION "This is a flag which indicates whether user supplied
target visibility windows (type 'MT') are to be
loaded into relation 'qbwindows' for this target.
These windows are loaded directly into the PMDB by
an SQL file and they are used to restrict the
scheduling of observations of the target. 'Y'
implies a window file is to be used. 'N' indicates
a window file is not to be used."
FORM
NAME "TEF"
LABEL "WINDOW FILE (Y/N)"
END_FORM
END_FIELD
FIELD resolution
TYPE C1
DESCRIPTION "This a flag to indicate the numerical resolution of
the Chebychev polynomials to be computed for the
ephemeris. 'H' indicates high resolution and 'L'
indicates low resolution."
FORM
NAME "TEF"
LABEL "RESOLUTION (H/L)"
END_FORM
DISCRETE "H", "L"
RELATED_FIELDS "qtmchecbychev.resolution"
END_FIELD
FIELD spc_src
TYPE C4
DESCRIPTION "This field indicates the ephemeris data source for the
ephemeris file. The possible choices are 'JPL',
'ORB', or 'EPH'.
'JPL' indicates that the Jet Propulsion Lab Export
Planetary Ephemeris file is to be used to create the
target ephemeris file. This file is currently
SPSSLIB:WEMJPL.EPM and it contains ephemerides for
the Sun, Anti-Sun (viewed from Earth), Moon, and the
9 major planets for a time span well beyond the
lifetime of the HST.
'EPH' indicates that a user supplied ephemeris file is
to be used. In most cases this file is produced using
the Moving Object Support System (MOSS).
'ORB' indicates the ephemeris file was generated by
the EPHFILE/STPOLE program. These files contain
ephemeris data for either the north or south pole of
the HST orbit. The source for the HST orbit data is
an HST orbit file."
FORM
NAME "TEF"
LABEL "DATA SOURCE (EPH/JPL/ORB)"
END_FORM
DISCRETE "EPH", "JPL", "ORB"
END_FIELD
FIELD ephem_delta
TYPE SOGS_INT_TIME_TYPE
DESCRIPTION "This is the delta time step to be used when the
field 'spc_src' is 'JPL'. This time step is used
as the time increment when reading the JPL Export
Planetary Ephemeris file."
FORM
NAME "TEF"
LABEL "EPHEMERIS DELTA"
END_FORM
END_FIELD
FIELD max_fit_deg
TYPE I4
DESCRIPTION "This is a user supplied limit on the the maximum
allowed degree of Chebychev polynomials to be
computed by the EPHFILE/FIT program."
FORM
NAME "TEF"
LABEL "MAX FIT DEGREE (5-25)"
END_FORM
RANGE "5..25"
END_FIELD
FIELD fit_strt_tim
TYPE SOGS_INT_TIME_TYPE
DESCRIPTION "This is the overall start time of the Chebychev
polynomials computed for the target by the
EPHFILE/FIT program."
FORM
NAME "TEF"
LABEL "FIT START"
END_FORM
END_FIELD
FIELD fit_end_tim
TYPE SOGS_INT_TIME_TYPE
DESCRIPTION "This is the overall end time of the Chebychev
polynomials computed for the target by the EPHFILE/FIT
program."
FORM
NAME "TEF"
LABEL "FIT END"
END_FORM
END_FIELD
FIELD freq_eph_pts
TYPE I4
DESCRIPTION "This is the frequency of data points to be selected
from the ephemeris file for fitting by the EPHFILE/FIT
program. In other words, select every th point
in the file."
FORM
NAME "TEF"
LABEL "FIT EPHEMERIS SAMPLE RATE"
END_FORM
END_FIELD
FIELD min_int_dur
TYPE SOGS_INT_TIME_TYPE
DESCRIPTION "This is a user supplied minimum time limit over which
one Chebychev polynomial will be valid. This field
is used by EPHFILE/FIT."
FORM
NAME "TEF"
LABEL "MIN INTERVAL LENGTH"
END_FORM
END_FIELD
FIELD max_int_dur
TYPE SOGS_INT_TIME_TYPE
DESCRIPTION "This is a user supplied maximum time limit over which
one Chebychev polynomial will be valid. This field
is used by EPHFILE/FIT."
FORM
NAME "TEF"
LABEL "MAX INTERVAL LENGTH"
END_FORM
END_FIELD
FIELD max_ang_err
TYPE R4
UNITS "ARCSECONDS"
DESCRIPTION "This is the user supplied maximum angular error
allowed. This is used by EPHFILE/FIT when
calculating Chebychev polynomials."
FORM
NAME "TEF"
LABEL "MAX ALLOWED ANG ERROR"
END_FORM
END_FIELD
FIELD max_dx_err
TYPE R4
UNITS "ARCSECONDS"
DESCRIPTION "This is the user supplied maximum allowed range
(distance to target) error allowed. This is used by
EPHFILE/FIT when calculating Chebychev polynomials."
FORM
NAME "TEF"
LABEL "MAX ALLOWED DIS ERROR"
END_FORM
END_FIELD
FIELD res_err_in_x
TYPE R4
UNITS "KILOMETERS"
DESCRIPTION "This is the maximum residual error in the X vector
component computed by EPHFILE/FIT. This is a
'goodness-of-fit' measure."
FORM
NAME "TEF"
LABEL "RESIDUAL ERROR IN X"
END_FORM
END_FIELD
FIELD res_err_in_y
TYPE R4
UNITS "KILOMETERS"
DESCRIPTION "This is the maximum residual error in the Y vector
component computed by EPHFILE/FIT. This is a
'goodness-of-fit' measure."
FORM
NAME "TEF"
LABEL "RESIDUAL ERROR IN Y"
END_FORM
END_FIELD
FIELD res_err_in_z
TYPE R4
UNITS "KILOMETERS"
DESCRIPTION "This is the maximum residual error in the Z vector
component computed by EPHFILE/FIT. This is a
'goodness-of-fit' measure."
FORM
NAME "TEF"
LABEL "RESIDUAL ERROR IN Z"
END_FORM
END_FIELD
FIELD rms_err_in_x
TYPE R4
UNITS "KILOMETERS"
DESCRIPTION "This is the root mean square (RMS) error in the
X vector component computed by EPHFILE/FIT. This
is a 'goodness-of-fit' measure."
FORM
NAME "TEF"
LABEL "RMS ERROR IN X"
END_FORM
END_FIELD
FIELD rms_err_in_y
TYPE R4
UNITS "KILOMETERS"
DESCRIPTION "This is the root mean square (RMS) error in the
Y vector component computed by EPHFILE/FIT. This
is a 'goodness-of-fit' measure."
FORM
NAME "TEF"
LABEL "RMS ERROR IN Y"
END_FORM
END_FIELD
FIELD rms_err_in_z
TYPE R4
UNITS "KILOMETERS"
DESCRIPTION "This is the root mean square (RMS) error in the
Z vector component computed by EPHFILE/FIT. This
is a 'goodness-of-fit' measure."
FORM
NAME "TEF"
LABEL "RMS ERROR IN Z"
END_FORM
END_FIELD
FIELD mean_err_dir
TYPE R4
UNITS "ARCSECONDS"
DESCRIPTION "This is the mean angular error (in direction) computed
by EPHFILE/FIT. This is a 'goodness-of-fit' measure."
FORM
NAME "TEF"
LABEL "MEAN DIRECTION ERROR"
END_FORM
END_FIELD
FIELD mean_err_dis
TYPE R4
UNITS "ARCSECONDS"
DESCRIPTION "This is the mean range (distance to target) error
computed by EPHFILE/FIT. This is a 'goodness-of-fit'
measure."
FORM
NAME "TEF"
LABEL "MEAN DISTANCE ERROR"
END_FORM
END_FIELD
FIELD rms_err_dir
TYPE R4
UNITS "ARCSECONDS"
DESCRIPTION "This is the root mean squared (RMS) angular error
(in direction) computed by EPHFILE/FIT. This is a
'goodness-of-fit' measure."
FORM