Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-20 and TERRA Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 7/14/2025
Index Date (NOAA-20) Time (NOAA-20) Lat,Lon (NOAA-20) SZA (NOAA-20 ) Date (TERRA) Time (TERRA) Lat,Lon (TERRA) SZA (TERRA ) Distance(km) Time Diff (sec)
1 07/15/2025 22:37:37 73.98,-170.57 52.98 07/15/2025 22:38:18 74.00,-170.52 52.98 2.37 41
2 07/15/2025 23:28:19 -73.90, -3.05 127.11 07/15/2025 23:27:39 -73.92, -3.03 127.08 2.25 40
3 07/18/2025 08:59:16 -73.99,-146.01 126.59 07/18/2025 09:00:00 -73.97,-146.05 126.62 2.53 44
4 07/18/2025 09:50:01 73.93, 21.44 53.35 07/18/2025 09:49:20 73.91, 21.49 53.34 2.61 41
5 07/20/2025 19:20:58 73.98,-121.41 53.86 07/20/2025 19:21:41 74.01,-121.45 53.87 2.90 43
6 07/20/2025 20:11:41 -73.95, 46.00 126.18 07/20/2025 20:11:02 -73.93, 46.06 126.19 2.44 39
7 07/23/2025 05:42:38 -74.00, -96.86 125.65 07/23/2025 05:43:23 -74.02, -96.90 125.64 2.61 45
8 07/23/2025 06:33:23 73.94, 70.58 54.30 07/23/2025 06:32:43 73.95, 70.63 54.32 1.75 40
9 07/25/2025 16:04:21 74.05, -72.41 54.93 07/25/2025 16:05:04 74.02, -72.36 54.89 3.26 43
10 07/25/2025 16:55:03 -73.96, 95.14 125.17 07/25/2025 16:54:25 -73.95, 95.16 125.16 0.81 38
11 07/28/2025 02:26:00 -74.01, -47.73 124.57 07/28/2025 02:26:46 -74.02, -47.84 124.57 3.39 46

Figure of NOAA-20 and TERRA satellite orbits during SNOs since TLE Epoch: 7/14/2025
SNOs_Map_NOAA-20_TERRA_20250714.jpg

Download SNOs between NOAA-20 and TERRA since TLE EPOCH: 07/14/2025 in txt file.

Historial Predications of SNOs between NOAA-20 and TERRA