Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and TERRA Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 6/19/2026
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (TERRA) Time (TERRA) Lat,Lon (TERRA) SZA (TERRA ) Distance(km) Time Diff (sec)
1 06/20/2026 23:55:13 75.69, 166.05 52.78 06/20/2026 23:56:04 75.70, 166.18 52.76 3.84 51
2 06/21/2026 00:45:55 -75.62, -26.41 127.31 06/21/2026 00:45:24 -75.64, -26.34 127.29 2.60 31
3 06/23/2026 09:26:20 76.32, 21.17 53.57 06/23/2026 09:27:24 76.22, 24.76 53.19 95.31 64
4 06/23/2026 10:16:49 -75.65,-169.25 127.24 06/23/2026 10:16:54 -75.66,-169.22 127.25 0.79 5
5 06/23/2026 11:07:28 75.31, -0.88 52.35 06/23/2026 11:06:18 75.36, -2.34 52.54 41.51 70
6 06/25/2026 19:47:43 -75.69, 47.90 127.13 06/25/2026 19:48:24 -75.67, 47.87 127.17 3.11 41
7 06/25/2026 20:38:28 75.63,-144.61 52.80 06/25/2026 20:37:43 75.63,-144.57 52.80 1.49 45
8 06/28/2026 05:18:40 -75.87, -95.41 126.81 06/28/2026 05:19:52 -75.77, -94.79 126.99 20.84 72
9 06/28/2026 06:09:22 75.68, 72.53 52.96 06/28/2026 06:09:12 75.67, 72.63 52.95 2.85 10
10 06/30/2026 15:40:15 75.68, -70.20 53.10 06/30/2026 15:40:41 75.71, -70.21 53.12 3.25 26
11 06/30/2026 16:30:58 -75.65, 97.22 126.94 06/30/2026 16:30:01 -75.65, 97.29 126.93 2.08 57
12 07/03/2026 01:11:09 75.73, 146.91 53.34 07/03/2026 01:12:10 75.73, 146.93 53.32 0.63 61
13 07/03/2026 02:01:52 -75.69, -45.66 126.70 07/03/2026 02:01:30 -75.68, -45.56 126.72 3.27 22

Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 6/19/2026
SNOs_Map_NOAA-21_TERRA_20260619.jpg

Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 06/19/2026 in txt file.

Historial Predications of SNOs between NOAA-21 and TERRA