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: 10/20/2025
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 10/21/2025 02:31:57 -74.47, -50.22 94.71 10/21/2025 02:33:05 -74.45, -50.29 94.74 3.28 68
2 10/21/2025 03:22:42 74.42, 117.23 85.25 10/21/2025 03:22:24 74.41, 117.28 85.23 2.11 18
3 10/23/2025 12:53:45 74.47, -25.66 86.14 10/23/2025 12:54:27 74.49, -25.60 86.15 2.67 42
4 10/23/2025 13:44:28 -74.42, 141.79 93.90 10/23/2025 13:43:48 -74.42, 141.90 93.91 3.54 40
5 10/25/2025 23:15:31 -74.48, -1.12 93.02 10/25/2025 23:15:51 -74.46, -1.06 93.04 2.46 20
6 10/26/2025 00:06:15 74.37, 166.46 86.89 10/26/2025 00:05:11 74.37, 166.40 86.89 1.98 64
7 10/28/2025 08:46:39 -74.78,-144.69 91.88 10/28/2025 08:47:50 -74.67,-143.62 92.04 33.58 71
8 10/28/2025 09:37:18 74.44, 23.54 87.76 10/28/2025 09:37:13 74.43, 23.48 87.76 2.12 5
9 10/28/2025 10:27:50 -73.85,-167.67 92.86 10/28/2025 10:26:42 -73.94,-169.95 92.68 71.21 68
10 10/30/2025 19:08:20 74.51,-119.40 88.63 10/30/2025 19:09:13 74.51,-119.40 88.62 0.27 53
11 10/30/2025 19:59:02 -74.41, 48.17 91.47 10/30/2025 19:58:34 -74.43, 48.09 91.45 3.20 28
12 11/02/2025 05:30:05 -74.49, -94.78 90.62 11/02/2025 05:30:35 -74.47, -94.87 90.64 3.16 30

Figure of NOAA-20 and TERRA satellite orbits during SNOs since TLE Epoch: 10/20/2025
SNOs_Map_NOAA-20_TERRA_20251021.jpg

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

Historial Predications of SNOs between NOAA-20 and TERRA