PDS_VERSION_ID = PDS3
DATA_SET_ID = "GO-J-RSS-5-ROCC-V1.0"
PRODUCT_ID = "I09443NA"
STANDARD_DATA_PRODUCT_ID = "IO-EDS"
PRODUCT_TYPE = DATA
PRODUCT_VERSION_ID = "1"
PRODUCT_RELEASE_DATE = 1999-07-15
PRODUCT_CREATION_TIME = 1999-07-15T21:11:43
PRODUCER_ID = "GLL RPT"
SOFTWARE_NAME = "JUP_EDS; V1.1"
RECORD_TYPE = FIXED_LENGTH
RECORD_BYTES = 46
FILE_RECORDS = 72
START_TIME = 1997-07-31T15:14:00
STOP_TIME = 1997-07-31T15:59:00
SPACECRAFT_CLOCK_START_COUNT = "1/04066375:33:8:6"
SPACECRAFT_CLOCK_STOP_COUNT = "1/04066419:79:8:6"
INSTRUMENT_HOST_NAME = "GALILEO ORBITER"
INSTRUMENT_HOST_ID = "GO"
MISSION_PHASE_NAME = "CALLISTO 9 ORBIT"
ORBIT_NUMBER = 9
TARGET_NAME = "IO"
INSTRUMENT_NAME = "RADIO SCIENCE SUBSYSTEM"
INSTRUMENT_ID = "RSS"
DESCRIPTION = "
I09443NA.EDS contains an ionospheric electron density profile for Io
derived from Galileo (GLL) radio occultation data during orbit
9 (1997-07-31T15:14 to 1997-07-31T15:59)."
NOTE = "
Raw samples of DSN receiver output were filtered and corrected
for observing geometry. A back propagation algorithm was used
to remove effects of diffraction and multipath propagation.
Estimates of signal frequency versus time were then converted
to bending angle versus impact parameter. These results were
inverted to refractive index as a function of radius via an
Abel transform. Electron number density was obtained from
refractive index using a conversion formula appropriate to
the measurement frequency (2295 MHz). See Hinson et al.
(Geophys. Res. Lett., 24, 2107-2110, 1997; J. Geophys. Res.,
103, 9505-9520, 1998) for more details. Latitudes and longitudes
on Jupiter are given in the IAU 1994 reference frame (Davies et
al., Celest. Mech. Dyn. Astron., 63, 127, 1995)."
^RSED_HDR_TABLE = ("I09443NA.EDS",1)
^RSED_TABLE = ("I09443NA.EDS",6)
OBJECT = RSED_HDR_TABLE
ROWS = 1
COLUMNS = 24
ROW_BYTES = 230
INTERCHANGE_FORMAT = ASCII
DESCRIPTION = "The RSED header contains ancillary data
associated with ionospheric electron density profiles. Each
header includes a single row of 24 data columns (214 total bytes),
14 ASCII blank characters to pad out the record, and an ASCII
carriage-return line-feed pair at the end."
OBJECT = COLUMN
NAME = "START TIME"
COLUMN_NUMBER = 1
DATA_TYPE = TIME
START_BYTE = 1
BYTES = 19
UNIT = "N/A"
DESCRIPTION = "The Earth Receive Time (UTC) of
the first radio occultation data sample used in this analysis."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "STOP TIME"
COLUMN_NUMBER = 2
DATA_TYPE = TIME
START_BYTE = 21
BYTES = 19
UNIT = "N/A"
DESCRIPTION = "The Earth Receive Time (UTC) of
the last radio occultation data sample used in this analysis."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "OCCULTATION TIME"
COLUMN_NUMBER = 3
DATA_TYPE = TIME
START_BYTE = 41
BYTES = 19
UNIT = "N/A"
DESCRIPTION = "The approximate time at Io (UTC)
when the experiment was sounding the ionosphere just above
the surface. This is computed by subtracting the Io-to-Earth
light time from the appropriate Earth Receive Time."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "ORBIT NUMBER"
COLUMN_NUMBER = 4
DATA_TYPE = ASCII_INTEGER
START_BYTE = 61
BYTES = 2
FORMAT = "I2"
UNIT = "N/A"
DESCRIPTION = "Orbit number from which the data
were acquired; set to zero if not known."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "DSN ANTENNA NUMBER"
COLUMN_NUMBER = 5
DATA_TYPE = ASCII_INTEGER
START_BYTE = 64
BYTES = 2
FORMAT = "I2"
UNIT = "N/A"
DESCRIPTION = "Number of the DSN antenna used
to collect the data (e.g., 14, 43, 63, ...)."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "LATITUDE AT SURFACE"
COLUMN_NUMBER = 6
DATA_TYPE = ASCII_REAL
START_BYTE = 67
BYTES = 5
FORMAT = "F5.1"
UNIT = "DEGREE"
DESCRIPTION = "Planetocentric (north) latitude at
base of retrieved profile."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SIGMA LATITUDE"
COLUMN_NUMBER = 7
DATA_TYPE = ASCII_REAL
START_BYTE = 73
BYTES = 4
FORMAT = "F4.1"
UNIT = "DEGREE"
DESCRIPTION = "One standard deviation uncertainty
in LATITUDE AT SURFACE. This value also serves as an estimate
of the uncertainty in LATITUDE in RSED_TABLE. Set to -9.9 if
not known."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "LONGITUDE AT SURFACE"
COLUMN_NUMBER = 8
DATA_TYPE = ASCII_REAL
START_BYTE = 78
BYTES = 6
FORMAT = "F6.1"
UNIT = "DEGREE"
POSITIVE_LONGITUDE_DIRECTION = "EAST"
DESCRIPTION = "Planetocentric east longitude at
base of retrieved profile in body fixed coordinates."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SIGMA LONGITUDE"
COLUMN_NUMBER = 9
DATA_TYPE = ASCII_REAL
START_BYTE = 85
BYTES = 4
FORMAT = "F4.1"
UNIT = "DEGREE"
DESCRIPTION = "One standard deviation uncertainty
in LONGITUDE AT SURFACE. This value also serves as an estimate
of the uncertainty in LONGITUDE in RSED_TABLE. Set to -9.9 if
not known."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "BETA ANGLE"
COLUMN_NUMBER = 10
DATA_TYPE = ASCII_REAL
START_BYTE = 90
BYTES = 5
FORMAT = "F5.1"
UNIT = "DEGREE"
DESCRIPTION = "The angle between the measurement
location and the center of the upstream hemisphere (0 deg N,
90 deg E) as viewed from the center of Io."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SOLAR ZENITH ANGLE"
COLUMN_NUMBER = 11
DATA_TYPE = ASCII_REAL
START_BYTE = 96
BYTES = 5
FORMAT = "F5.1"
UNIT = "DEGREE"
DESCRIPTION = "Angle between the direction to Sun
and local vertical direction on Io at time and location of the
occultation measurement."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SUB-SOLAR LATITUDE"
COLUMN_NUMBER = 12
DATA_TYPE = ASCII_REAL
START_BYTE = 102
BYTES = 5
FORMAT = "F5.1"
UNIT = "DEGREE"
DESCRIPTION = "Planetocentric (north) latitude of
the sun at OCCULTATION TIME."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SUB-SOLAR LONGITUDE"
COLUMN_NUMBER = 13
DATA_TYPE = ASCII_REAL
START_BYTE = 108
BYTES = 6
FORMAT = "F6.1"
UNIT = "DEGREE"
POSITIVE_LONGITUDE_DIRECTION = "EAST"
DESCRIPTION = "Planetocentric east longitude of the
sun in body fixed coordinates at OCCULTATION TIME."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "LOCAL TRUE SOLAR TIME OF OCCULTATION"
COLUMN_NUMBER = 14
DATA_TYPE = ASCII_REAL
START_BYTE = 115
BYTES = 5
FORMAT = "F5.2"
UNIT = "HOUR"
DESCRIPTION = "Local true solar time (LTST) at the
time and location of the occultation measurement. LTST at the
sub-solar longitude is defined as 12 solar hours. LTST on other
meridians changes by one solar hour for each 15 degree increment
in longitude. Thus, LTST for the occultation measurement is
given by 12 + (LONGITUDE_AT_SURFACE - SUB-SOLAR_LONGITUDE)/15."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SYSTEM III LONGITUDE"
COLUMN_NUMBER = 15
DATA_TYPE = ASCII_REAL
START_BYTE = 121
BYTES = 6
FORMAT = "F6.1"
UNIT = "DEGREE"
DESCRIPTION = "Planetocentric east longitude of
sub-Io point on Jupiter at OCCULTATION TIME (System III, 1965)."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "REFERENCE RADIUS"
COLUMN_NUMBER = 16
DATA_TYPE = ASCII_REAL
START_BYTE = 128
BYTES = 8
FORMAT = "F8.0"
UNIT = "METER"
DESCRIPTION = "Assumed radius of Io from which
ALTITUDE is measured."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "ALTITUDE UNCERTAINTY"
COLUMN_NUMBER = 17
DATA_TYPE = ASCII_REAL
START_BYTE = 137
BYTES = 6
FORMAT = "F6.0"
UNIT = "METER"
DESCRIPTION = "One standard deviation uncertainty
in ALTITUDE."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SPACECRAFT TO LIMB DISTANCE"
COLUMN_NUMBER = 18
DATA_TYPE = ASCII_REAL
START_BYTE = 144
BYTES = 9
FORMAT = "E9.3"
UNIT = "METER"
DESCRIPTION = "Distance from spacecraft to
limb of Io at OCCULTATION TIME."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SPACECRAFT TO DSN DISTANCE"
COLUMN_NUMBER = 19
DATA_TYPE = ASCII_REAL
START_BYTE = 154
BYTES = 9
FORMAT = "E9.3"
UNIT = "METER"
DESCRIPTION = "Distance from spacecraft to DSN
receiving antenna at OCCULTATION TIME."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "JUPITER TO SUN DISTANCE"
COLUMN_NUMBER = 20
DATA_TYPE = ASCII_REAL
START_BYTE = 164
BYTES = 9
FORMAT = "E9.3"
UNIT = "METER"
DESCRIPTION = "Distance from Jupiter to Sun
at OCCULTATION TIME."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SUN-EARTH-SPACECRAFT ANGLE"
COLUMN_NUMBER = 21
DATA_TYPE = ASCII_REAL
START_BYTE = 174
BYTES = 5
FORMAT = "F5.1"
UNIT = "DEGREE"
DESCRIPTION = "Approximate angle between Sun and
spacecraft as viewed from Earth during experiment."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "DSN ELEVATION ANGLE"
COLUMN_NUMBER = 22
DATA_TYPE = ASCII_REAL
START_BYTE = 180
BYTES = 5
FORMAT = "F5.1"
UNIT = "DEGREE"
DESCRIPTION = "Approximate angle between
direction to spacecraft and local horizon at DSN receiving
antenna during experiment."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "PCK FILE NAME"
COLUMN_NUMBER = 23
DATA_TYPE = CHARACTER
START_BYTE = 187
BYTES = 12
FORMAT = "A12"
UNIT = "N/A"
DESCRIPTION = "Name of the NAIF Planetary
Constants File used in this analysis."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "TRAJECTORY FILE NAME"
COLUMN_NUMBER = 24
DATA_TYPE = CHARACTER
START_BYTE = 202
BYTES = 12
FORMAT = "A12"
UNIT = "N/A"
DESCRIPTION = "Name of the spacecraft and
planetary ephemeris file used in this analysis."
END_OBJECT = COLUMN
END_OBJECT = RSED_HDR_TABLE
OBJECT = RSED_TABLE
ROWS = 72
COLUMNS = 5
ROW_BYTES = 46
INTERCHANGE_FORMAT = ASCII
DESCRIPTION = "Table contains radio science ionospheric
electron density profile. Each row in the table contains
data for 5 columns, delimited by ASCII commas (44 bytes total);
the final two positions are occupied by an ASCII carriage-return
and an ASCII line-feed."
OBJECT = COLUMN
NAME = "ALTITUDE"
COLUMN_NUMBER = 1
DATA_TYPE = ASCII_REAL
START_BYTE = 1
BYTES = 8
FORMAT = "F8.0"
UNIT = "METER"
DESCRIPTION = "Altitude of measurement above
REFERENCE RADIUS."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "LATITUDE"
COLUMN_NUMBER = 2
DATA_TYPE = ASCII_REAL
START_BYTE = 10
BYTES = 6
FORMAT = "F6.2"
UNIT = "DEGREE"
DESCRIPTION = "Planetocentric (north) latitude
of measurement."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "LONGITUDE"
COLUMN_NUMBER = 3
DATA_TYPE = ASCII_REAL
START_BYTE = 17
BYTES = 7
FORMAT = "F7.2"
UNIT = "DEGREE"
POSITIVE_LONGITUDE_DIRECTION = "EAST"
DESCRIPTION = "Planetocentric (east) longitude
of measurement in body fixed coordinates."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "ELECTRON NUMBER DENSITY"
COLUMN_NUMBER = 4
DATA_TYPE = ASCII_REAL
START_BYTE = 25
BYTES = 11
FORMAT = "E11.4"
UNIT = "1 PER CUBIC METER"
DESCRIPTION = "Electron number density at ALTITUDE,
LATITUDE, LONGITUDE."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SIGMA ELECTRON NUMBER DENSITY"
COLUMN_NUMBER = 5
DATA_TYPE = ASCII_REAL
START_BYTE = 37
BYTES = 8
FORMAT = "E8.2"
UNIT = "1 PER CUBIC METER"
DESCRIPTION = "One standard deviation uncertainty
in ELECTRON NUMBER DENSITY."
END_OBJECT = COLUMN
END_OBJECT = RSED_TABLE
END
|