Due to occasional ISS reboost operations, it will take approximately two days before the ISS orbit parameters (NORAD two-line elements, TLEs) to settle for any new changes in the ISS orbit with respect to the validation website predictions for SAGE III/ISS event overpasses. Predictions can be potentially off by 5-10% longitude/time until the TLEs has settled down after an ISS reboost.

Prediction database last updated: 2023-09-12 00:00:14

Step 1:  Select an occultation event type

The options include being able to select event type (solar, lunar or limb-scatter).

  

Step 2:  Select a temporal range (optional)

Use the temporal options to narrow your search to a specific temporal domain. If you do not make a temporal selection, the default is to search the complete range of time in which the satellite has acquired data. If you limit your search to a specific time domain, the search will return all available data that intersect with your selected time range.

Calendar dates

The dates reflected in this tool represent predicted occultation events that the SAGE III/ISS the instrument will be in data acquisition mode. This should be used for planning purposes only and will be updated every week as necessary to represent the latest known state vector of the ISS.

      

Step 3:  Select a geospatial range (optional)

Use the geospatial options to narrow your search to a specific geospatial area. If you do not make a geospatial selection, the default is to search the whole globe. If you limit your search to a specific area, the search will return all available data that intersect with your selected area.

User-defined bounding box

Modify the geospatial fields to specify your area of interest, or use your mouse directly on the map to draw a bounding box by clicking and dragging. The map uses latitude/longitude bounds (north, south, east, and west) to define the area of a box. If you use the mouse to draw the area on the map, the fields are filled in automatically, based on the box drawn.

Latitudes and longitudes are in Decimal Degrees (DD) format.

Use: '+' for north latitudes or east longitudes; use '-' for south latitudes or west longitudes. Example: +40.68, -74.04

To cross the anti-meridian, left must be greater than right. Example: (left) +148.64, (right) -115.73

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