Provides ephemeris and other information
of the primary bodies as a function of time. Not restricted to
conjuncting intervals.
| Name |
Dimension |
Type |
Description |
| Ellipsoid
- Tangential |
DistanceUnit |
Real Number |
The length of the primary object's ellipsoid at the
given time in the tangential direction. The tangential direction
lies along the object's inertial velocity. |
| Altitude |
DistanceUnit |
Real Number |
The altitude value (i.e., magnitude of the relative
position vector between the object and its detic subpoint). |
| Ellipsoid -
Normal |
DistanceUnit |
Real Number |
The length of the primary object's ellipsoid at the
given time in the normal direction. The normal direction completes
a triad involving the tangential and cross-track directions and is
akin to the radial direction. |
| Ellipsoid -
Middle |
DistanceUnit |
Real Number |
The length of the intermediate symmetry axis of the
primary object's ellipsoid at the given time. |
| x |
DistanceUnit |
Real Number |
The X component of the position vector. |
| Concurrent
Events |
Unitless |
Integer |
The number of secondaries experiencing a close
approach event with the primary object at the given time. |
| y |
DistanceUnit |
Real Number |
The Y component of the position vector. |
| Ellipsoid - Min |
DistanceUnit |
Real Number |
The length of the shortest symmetry axis of the
primary object's ellipsoid at the given time. |
| Ellipsoid
- CrossTrack |
DistanceUnit |
Real Number |
The length of the primary object's ellipsoid at the
given time in the cross-track direction. The cross-track direction
lies along the object's orbit normal. |
| z |
DistanceUnit |
Real Number |
The Z component of the position vector. |
| vx |
Rate |
Real Number |
X Cartesian component of velocity. |
| Ellipsoid - Max |
DistanceUnit |
Real Number |
The length of the longest symmetry axis of the
primary object's ellipsoid at the given time. |
| vy |
Rate |
Real Number |
Y Cartesian component of velocity. |
| Latitude |
LatitudeUnit |
Real Number |
The detic latitude (i.e., angle between the detic
subpoint's surface normal vector and the XY plane.) |
| vz |
Rate |
Real Number |
Z Cartesian component of velocity. |
| Longitude |
LongitudeUnit |
Real Number |
The detic longitude (i.e., angle from the X-axis
locating the projection of the detic subpoint's surface normal
vector onto the XY plane.) Longitude increases in the direction
found using the right-hand rule about the Z-axis. |
| NumberID |
Unitless |
Text |
The number identifier of the secondary object
involved in the close approach event. If the object has no number
identifier, then the value will be "Not Avail". |
| Pitch |
AngleUnit |
Real Number |
The pitch angle for the primary object's ellipsoid
at the given time. The pitch angle locates the major axis of the
ellipsoid from the plane whose normal is the cross-track
direction. |
| Roll |
AngleUnit |
Real Number |
Roll angle between the two sets of axes. Defines
rotation about the x-axis of the reference set, which occurs in
order defined by placement of its index (1) in selected sequence in
YPR angles representation. |
| SSC |
Unitless |
Integer |
The SSC identifier of the object experiencing a
problem. |
| StringID |
Unitless |
Text |
The string identifier of the secondary object
involved in the close approach event. If the object has no string
identifier, then the value will be "Not Avail". |
| Time Since Epoch |
TimeUnit |
Real Number |
The difference between the event time and the
primary object's epoch. |
| Yaw |
AngleUnit |
Real Number |
The yaw angle for the primary object's ellipsoid at
the given time. The yaw angle locates from the tangential direction
the projection of the major axis of the ellipsoid onto the plane
whose normal is the cross-track direction. |
| Time |
DateFormat |
Real Number |
Time. |