Data Providers: Satellite: Passes

Satellite: Passes

Data reported for each pass of the satellite's orbit.

Type: Interval data

Availability: Reports | Graphs

Name	Dimension	Type	Description
Pass Number	Unitless	Integer	Satellite pass number at the stated time.
Start Time	DateFormat	Real Number	The start time of an interval.
End Time	DateFormat	Real Number	The stop time of an interval.
Apogee	DistanceUnit	Real Number or Text	The detic altitude at the time of apoapse. See the definition of the time of apogee as used by this data provider.
Perigee	DistanceUnit	Real Number or Text	The detic altitude at the time of periapse. See the definition of the time of perigee as used by this data provider.
Time of Apogee	DateFormat	Real Number or Text	The time when the range rate is decreasing through zero. The range rate is defined as the dot product of the position and velocity vectors divided by the magnitude of the position vector. If the orbit is very close to circular, the time will not be computed.
Time of Perigee	DateFormat	Real Number or Text	The time when the range rate is increasing through zero. The range rate is defined as the dot product of the position and velocity vectors divided by the magnitude of the position vector. If the orbit is very close to circular, the time will not be computed.
Period	TimeUnit	Real Number or Text	The duration of the pass. If the pass does not start or end on a pass break, the value will be "Partial Pass".
Right Ascen	LongitudeUnit	Real Number or Text	The right ascension, measured in the satellite's central body inertial coordinate system, when the satellite passes through the ascending node during this pass. If the ascending node is not within the pass, then the value will be "Not In Pass". If the orbit is nearly equatorial, the value will be "Equatorial".
Lon Ascen Node	LongitudeUnit	Real Number or Text	The right ascension, measured in the satellite's central body fixed coordinate system, when the satellite passes through the ascending node during this pass. If the ascending node is not within the pass, then the value will be "Not In Pass". If the orbit is nearly equatorial, the value will be "Equatorial".
Lon Descen Node	LongitudeUnit	Real Number or Text	The right ascension, measured in the satellite's central body fixed coordinate system, when the satellite passes through the descending node during this pass. If the descending node is not within the pass, then the value will be "Not In Pass". If the orbit is nearly equatorial, the value will be "Equatorial".
Time of Ascen Node	DateFormat	Real Number or Text	The time when the satellite is at the ascending node (i.e., the Z component of the inertial position vector increases through zero). The inertial position vector is expressed in the coordinate system specified on the pass break settings of the satellite, except that Inertial is used if the setting is Fixed. If the orbit is nearly equatorial, the value will not be computed.
Time of Descen Node	DateFormat	Real Number or Text	The time when the satellite is at the descending node (i.e., the Z component of the inertial position vector decreases through zero). The inertial position vector is expressed in the coordinate system specified on the pass break settings of the satellite, except that Inertial is used if the setting is Fixed. If the orbit is nearly equatorial, the value will not be computed.
Lat of Pass Break	LatitudeUnit	Real Number	The detic latitude of the object at the start time of the pass.
Lon of Pass Break	LongitudeUnit	Real Number	The detic longitude of the object at the start time of the pass.
Alt of Pass Break	DistanceUnit	Real Number	The detic altitude of the object at the start time of the pass.
Min Lat	LatitudeUnit	Real Number or Text	The detic latitude at the time of the minimum latitude during the pass. See the definition of time of minimum lat as used by this data provider.
Max Lat	LatitudeUnit	Real Number or Text	The detic latitude at the time of the maximum latitude during the pass. See the definition of time of maximum lat as used by this data provider.
Time of Min Lat	DateFormat	Real Number or Text	The time of the minimum detic latitude, as found by determining the time at which the Z component of velocity vector is increasing through zero. The velocity vector is expressed in the vehicle's central body fixed coordinate system. If the orbit is nearly equatorial, then the value will not be computed.
Time of Max Lat	DateFormat	Real Number or Text	The time of the maximum detic latitude, as found by determining the time at which the Z component of velocity vector is decreasing through zero. The velocity vector is expressed in the vehicle's central body fixed coordinate system. If the orbit is nearly equatorial, then the value will not be computed.
Path Number	Unitless	Integer	Satellite path number at the stated time.
Time of Max Sun El	DateFormat	Real Number or Text	The time of the maximum solar elevation angle, as found by determining the time at which the elevation angle to the sun is decreasing through zero.
Time of Apparent Noon	DateFormat	Real Number or Text	The time when the satellite's apparent solar time is noon which occurs when the satellite is the same longitude as the apparent position of the Sun.
Time of Apparent Midnight	DateFormat	Real Number or Text	The time when the satellite's apparent solar time is midnight which occurs when the satellite longitude is different from the longitude of the apparent position of the Sun by 180 degrees.
Time of Apparent Dawn	DateFormat	Real Number or Text	The time of apparent dawn occurs when the difference in longitude between the satellite and the apparent position of the Sun is -90 degrees.
Time of Apparent Dusk	DateFormat	Real Number or Text	The time of apparent dusk occurs when the difference in longitude between the satellite and the apparent position of the Sun is 90 degrees.
Apogee Radius	DistanceUnit	Real Number or Text	The radius value at the time of apoapse. See the definition of the time of apogee as used by this data provider.
Perigee Radius	DistanceUnit	Real Number or Text	The radius value at the time of periapse. See the definition of the time of perigee as used by this data provider.
UTM Zone Ascen Node	Unitless	Text	The UTM Zone character indicator for the detic subpoint at the time of the ascending node. Available only when the central body is Earth.
UTM Easting Ascen Node	DistanceUnit	Real Number or Text	The easting value within the UTM zone for the detic subpoint at the time of the ascending node. Available only when the central body is Earth.
UTM Northing Ascen Node	DistanceUnit	Real Number or Text	The northing value within the UTM zone for the detic subpoint at the time of the ascending node. Available only when the central body is Earth.
MGRS Cell Ascen Node	Unitless	Text	The MGRS (Military Grid Reference System) code for the cell area containing the detic subpoint at the time of the ascending node. Available only when the central body is Earth.
UTM Zone Descen Node	Unitless	Text	The UTM Zone character indicator for the detic subpoint at the time of the descending node. Available only when the central body is Earth.
UTM Easting Descen Node	DistanceUnit	Real Number or Text	The easting value within the UTM zone for the detic subpoint at the time of the descending node. Available only when the central body is Earth.
UTM Northing Descen Node	DistanceUnit	Real Number or Text	The northing value within the UTM zone for the detic subpoint at the time of the descending node. Available only when the central body is Earth.
MGRS Cell Descen Node	Unitless	Text	The MGRS (Military Grid Reference System) code for the cell area containing the detic subpoint at the time of the descending node. Available only when the central body is Earth.
UTM Zone of Pass Break	Unitless	Text	The UTM Zone character indicator for the detic subpoint at the start time of the pass. Available only when the central body is Earth.
UTM Easting of Pass Break	DistanceUnit	Real Number or Text	The easting value within the UTM zone for the detic subpoint at the start time of the pass. Available only when the central body is Earth.
UTM Northing of Pass Break	DistanceUnit	Real Number or Text	The northing value within the UTM zone for the detic subpoint at the start time of the pass. Available only when the central body is Earth.
MGRS Cell of Pass Break	Unitless	Text	The MGRS (Military Grid Reference System) code for the cell area containing the detic subpoint at the start time of the pass. Available only when the central body is Earth.