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: 10/17/2025
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 84.01 66
2 10/18/2025 17:00:54 -74.40, 92.70 95.64 10/18/2025 17:01:01 -74.41, 92.70 95.63 0.86 7
3 10/18/2025 17:51:35 74.16, -99.35 84.11 10/18/2025 17:50:23 74.21,-100.10 84.20 23.07 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 2.49 67
5 10/21/2025 03:22:42 74.40, 117.28 85.22 10/21/2025 03:22:25 74.38, 117.23 85.21 2.20 17
6 10/23/2025 12:53:45 74.49, -25.72 86.17 10/23/2025 12:54:27 74.48, -25.62 86.14 3.33 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 2.89 39
8 10/25/2025 23:15:30 -74.44, -1.03 93.06 10/25/2025 23:15:52 -74.43, -1.13 93.07 3.49 22
9 10/26/2025 00:06:15 74.39, 166.41 86.91 10/26/2025 00:05:11 74.39, 166.44 86.91 1.15 64
10 10/28/2025 08:46:40 -74.84,-144.85 91.82 10/28/2025 08:47:50 -74.73,-143.49 91.99 41.30 70
11 10/28/2025 09:37:18 74.45, 23.51 87.78 10/28/2025 09:37:14 74.43, 23.47 87.75 2.74 4
12 10/28/2025 10:27:51 -73.91,-167.80 92.80 10/28/2025 10:26:43 -73.94,-169.95 92.68 66.19 68
13 10/30/2025 19:08:21 74.51,-119.41 88.63 10/30/2025 19:09:16 74.50,-119.44 88.61 2.16 55
14 10/30/2025 19:59:03 -74.41, 48.17 91.47 10/30/2025 19:58:37 -74.42, 48.06 91.46 3.52 26

Figure of NOAA-20 and TERRA satellite orbits during SNOs since TLE Epoch: 10/17/2025
SNOs_Map_NOAA-20_TERRA_20251017.jpg

Download SNOs between NOAA-20 and TERRA since TLE EPOCH: 10/17/2025 in txt file.

Historial Predications of SNOs between NOAA-20 and TERRA