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: 6/12/2026
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 06/13/2026 18:31:46 -75.63, 67.10 127.13 06/13/2026 18:32:15 -75.64, 67.15 127.13 1.52 29
2 06/13/2026 19:22:31 75.57,-125.40 52.80 06/13/2026 19:21:35 75.54,-125.44 52.79 3.44 56
3 06/16/2026 04:02:40 -75.66, -75.72 127.19 06/16/2026 04:03:46 -75.65, -75.78 127.22 2.57 66
4 06/16/2026 04:53:25 75.60, 91.77 52.75 06/16/2026 04:53:05 75.60, 91.77 52.75 0.51 20
5 06/18/2026 14:24:19 75.64, -51.06 52.73 06/18/2026 14:24:35 75.64, -51.06 52.73 0.44 16
6 06/18/2026 15:15:01 -75.56, 116.50 127.36 06/18/2026 15:13:55 -75.58, 116.45 127.32 2.57 66
7 06/20/2026 23:55:13 75.67, 166.10 52.76 06/20/2026 23:56:05 75.67, 166.08 52.74 0.87 52
8 06/21/2026 00:45:55 -75.60, -26.34 127.34 06/21/2026 00:45:25 -75.61, -26.42 127.31 2.54 30
9 06/23/2026 09:26:20 76.31, 21.22 53.55 06/23/2026 09:27:24 76.23, 24.78 53.19 94.37 64
10 06/23/2026 10:16:49 -75.63,-169.18 127.27 06/23/2026 10:16:55 -75.62,-169.32 127.27 3.92 6
11 06/23/2026 11:07:28 75.30, -0.84 52.34 06/23/2026 11:06:18 75.37, -2.32 52.55 42.58 70
12 06/25/2026 19:47:42 -75.67, 47.96 127.16 06/25/2026 19:48:23 -75.67, 47.89 127.17 2.11 41

Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 6/12/2026
SNOs_Map_NOAA-21_TERRA_20260613.jpg

Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 06/12/2026 in txt file.

Historial Predications of SNOs between NOAA-21 and TERRA