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: 9/20/2025
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 09/21/2025 23:53:32 -74.32, -10.29 105.82 09/21/2025 23:54:17 -74.32, -10.24 105.84 1.36 45
2 09/22/2025 00:44:16 74.25, 157.21 74.12 09/22/2025 00:43:36 74.22, 157.22 74.10 2.83 40
3 09/24/2025 10:15:11 74.31, 14.33 75.11 09/24/2025 10:15:47 74.31, 14.32 75.10 0.42 36
4 09/24/2025 11:05:54 -74.25,-178.19 104.95 09/24/2025 11:05:09 -74.26,-178.14 104.94 1.67 45
5 09/26/2025 20:36:48 -74.31, 38.92 103.96 09/26/2025 20:37:19 -74.32, 38.91 103.95 1.12 31
6 09/26/2025 21:27:32 74.25,-153.59 75.99 09/26/2025 21:26:38 74.23,-153.63 75.98 2.51 54
7 09/29/2025 06:58:27 74.32, 63.50 76.99 09/29/2025 06:58:48 74.32, 63.49 76.99 0.64 21
8 09/29/2025 07:49:10 -74.25,-129.00 103.08 09/29/2025 07:48:10 -74.27,-128.98 103.05 2.44 60
9 10/01/2025 17:20:05 -74.32, 88.08 102.08 10/01/2025 17:20:20 -74.34, 88.10 102.06 2.20 15
10 10/01/2025 18:10:49 74.26,-104.44 77.87 10/01/2025 18:09:39 74.25,-104.44 77.87 1.24 70
11 10/04/2025 02:51:14 -75.08, -56.70 100.32 10/04/2025 02:52:19 -74.96, -53.51 100.58 92.42 65
12 10/04/2025 03:41:44 74.34, 112.63 78.88 10/04/2025 03:41:48 74.36, 112.71 78.89 2.71 4

Figure of NOAA-20 and TERRA satellite orbits during SNOs since TLE Epoch: 9/20/2025
SNOs_Map_NOAA-20_TERRA_20250921.jpg

Download SNOs between NOAA-20 and TERRA since TLE EPOCH: 09/20/2025 in txt file.

Historial Predications of SNOs between NOAA-20 and TERRA