Normal Point Bin Size Recommendations
The table below lists satellite orbital characteristics and the nominal CRD normal point bin size.
Missions can use the values in this table as guidelines for specifying a normal point bin size value in their Mission Support Request form. Missions can request a different bin size if added resolution in the normal point is required or if the recommended temporal resolution is not needed. The ILRS will review the specified bin size and may recommend an alternate value depending on the satellite orbit and other factors.
Nominal Satellite
Altitude (km)
| Bin Size
(seconds)
| NPT Indicator
(from old format)
| Example Satellites
| Comments
|
| N/A |
N/A |
0 |
N/A |
Not a normal point |
| < 500 |
5 |
1 |
GRACE |
|
| 550 – 800 |
15 |
3 |
Sentinel-3 |
|
| 800 – 2,000 |
30 |
5 |
Starlette, Stella, LARES |
|
| 2,000 – 5,000 |
60 |
6 |
|
|
| 5,000 – 8,000 |
120 |
7 |
LAGEOS |
|
| 8,000 – 15,000 |
180 |
300 |
|
|
| > 15,000 |
300 |
9 |
Etalon, GNSS |
|
| Lunar |
Variable |
2 |
Apollo, Luna |
|
