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: 3/15/2023
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 03/17/2023 10:52:25 70.97, 11.79 72.38 03/17/2023 10:53:35 70.85, 12.99 72.20 45.40 70
2 03/17/2023 11:42:58 -70.41,-179.97 108.24 03/17/2023 11:43:07 -70.43,-179.98 108.21 3.00 9
3 03/17/2023 12:33:42 70.30, -12.49 71.64 03/17/2023 12:32:30 70.30, -12.51 71.65 0.94 72
4 03/19/2023 23:46:11 70.60, 178.93 70.97 03/19/2023 23:47:23 70.56, 179.11 70.92 7.74 72
5 03/20/2023 00:36:51 -70.40, -13.44 109.26 03/20/2023 00:36:50 -70.42, -13.45 109.23 2.49 1
6 03/20/2023 01:27:29 69.97, 154.53 70.29 03/20/2023 01:26:18 70.01, 153.63 70.37 34.49 71
7 03/22/2023 12:40:02 70.50, -14.39 69.86 03/22/2023 12:41:06 70.50, -14.43 69.85 1.53 64
8 03/22/2023 13:30:44 -70.41, 153.08 110.26 03/22/2023 13:30:32 -70.41, 153.09 110.25 0.95 12
9 03/22/2023 14:21:14 69.56, -38.34 68.85 03/22/2023 14:20:07 69.61, -40.36 68.99 78.81 67
10 03/25/2023 01:33:53 70.47, 152.18 68.83 03/25/2023 01:34:46 70.50, 152.12 68.84 3.35 53
11 03/25/2023 02:24:36 -70.43, -40.43 111.24 03/25/2023 02:24:12 -70.41, -40.36 111.26 3.28 24
12 03/27/2023 14:27:46 70.51, -41.36 67.87 03/27/2023 14:28:26 70.50, -41.32 67.84 1.93 40
13 03/27/2023 15:18:27 -70.36, 126.20 112.32 03/27/2023 15:17:53 -70.36, 126.12 112.31 3.01 34

Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 3/15/2023
SNOs_Map_NOAA-21_TERRA_20230315.jpg

Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 03/15/2023 in txt file.

Historial Predications of SNOs between NOAA-21 and TERRA