Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and TERRA Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 7/5/2025
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (TERRA) Time (TERRA) Lat,Lon (TERRA) SZA (TERRA ) Distance(km) Time Diff (sec)
1 07/07/2025 09:57:21 -73.96,-160.17 128.25 07/07/2025 09:57:40 -73.97,-160.26 128.24 2.90 19
2 07/07/2025 10:48:06 73.91, 7.27 51.70 07/07/2025 10:47:00 73.90, 7.27 51.71 1.05 66
3 07/09/2025 20:19:04 73.98,-135.64 52.07 07/09/2025 20:19:22 73.99,-135.67 52.08 1.49 18
4 07/09/2025 21:09:47 -73.94, 31.79 127.98 07/09/2025 21:08:43 -73.93, 31.85 127.98 2.11 64
5 07/12/2025 06:40:45 -74.01,-111.12 127.57 07/12/2025 06:41:05 -74.01,-111.13 127.58 0.15 20
6 07/12/2025 07:31:29 73.92, 56.41 52.33 07/12/2025 07:30:25 73.94, 56.40 52.37 2.45 64
7 07/14/2025 17:02:26 74.00, -86.52 52.78 07/14/2025 17:02:46 74.00, -86.60 52.79 2.61 20
8 07/14/2025 17:53:09 -73.94, 80.94 127.28 07/14/2025 17:52:07 -73.94, 80.92 127.27 0.72 62
9 07/17/2025 03:24:07 -74.01, -61.98 126.80 07/17/2025 03:24:28 -74.04, -62.00 126.78 3.00 21

Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 7/5/2025
SNOs_Map_NOAA-21_TERRA_20250705.jpg

Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 07/05/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and TERRA