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: 10/18/2025
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 10/18/2025 16:10:24 75.08, -76.48 85.10 10/18/2025 16:11:30 74.99, -73.58 84.89 84.06 66
2 10/18/2025 17:00:54 -74.41, 92.70 95.64 10/18/2025 17:01:01 -74.41, 92.70 95.63 0.83 7
3 10/18/2025 17:51:35 74.16, -99.35 84.11 10/18/2025 17:50:23 74.21,-100.09 84.20 23.04 72
4 10/21/2025 02:31:58 -74.49, -50.28 94.69 10/21/2025 02:33:05 -74.48, -50.21 94.71 2.47 67
5 10/21/2025 03:22:42 74.39, 117.29 85.22 10/21/2025 03:22:25 74.38, 117.23 85.21 2.04 17
6 10/23/2025 12:53:45 74.49, -25.71 86.17 10/23/2025 12:54:27 74.48, -25.62 86.14 3.12 42
7 10/23/2025 13:44:27 -74.39, 141.86 93.94 10/23/2025 13:43:48 -74.41, 141.90 93.91 2.79 39
8 10/25/2025 23:15:30 -74.44, -1.02 93.06 10/25/2025 23:15:52 -74.43, -1.14 93.07 3.90 22
9 10/26/2025 00:06:15 74.39, 166.42 86.91 10/26/2025 00:05:11 74.38, 166.43 86.91 0.81 64
10 10/28/2025 08:46:40 -74.83,-144.84 91.82 10/28/2025 08:47:50 -74.72,-143.51 91.99 40.71 70
11 10/28/2025 09:37:18 74.45, 23.52 87.77 10/28/2025 09:37:14 74.42, 23.46 87.75 3.07 4
12 10/28/2025 10:27:51 -73.91,-167.80 92.81 10/28/2025 10:26:43 -73.94,-169.96 92.69 66.87 68
13 10/30/2025 19:08:21 74.51,-119.39 88.63 10/30/2025 19:09:16 74.49,-119.45 88.60 2.83 55
14 10/30/2025 19:59:04 -74.45, 48.06 91.43 10/30/2025 19:58:36 -74.47, 48.16 91.42 3.28 28

Figure of NOAA-20 and TERRA satellite orbits during SNOs since TLE Epoch: 10/18/2025
SNOs_Map_NOAA-20_TERRA_20251018.jpg

Download SNOs between NOAA-20 and TERRA since TLE EPOCH: 10/18/2025 in txt file.

Historial Predications of SNOs between NOAA-20 and TERRA