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: 4/8/2023
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 04/09/2023 06:06:19 -70.53, -96.06 116.99 04/09/2023 06:07:15 -70.54, -96.10 116.99 2.01 56
2 04/09/2023 06:57:03 70.42, 71.43 62.88 04/09/2023 06:56:38 70.44, 71.41 62.90 2.43 25
3 04/11/2023 19:00:10 -70.52, 70.50 117.95 04/11/2023 19:00:51 -70.55, 70.48 117.93 3.23 41
4 04/11/2023 19:50:54 70.41,-122.02 61.92 04/11/2023 19:50:15 70.39,-122.09 61.91 3.38 39
5 04/14/2023 07:54:01 -70.51,-122.96 118.88 04/14/2023 07:54:27 -70.52,-122.98 118.88 0.92 26
6 04/14/2023 08:44:45 70.41, 44.52 61.00 04/14/2023 08:43:50 70.42, 44.53 61.01 1.11 55
7 04/16/2023 19:57:19 71.14,-124.77 60.88 04/16/2023 19:58:28 71.03,-123.29 60.72 54.85 69
8 04/16/2023 20:47:51 -70.52, 43.56 119.79 04/16/2023 20:48:01 -70.51, 43.59 119.80 1.08 10
9 04/16/2023 21:38:35 70.41,-148.96 60.09 04/16/2023 21:37:24 70.41,-148.90 60.10 2.35 71
10 04/19/2023 08:51:00 70.63, 42.61 59.45 04/19/2023 08:52:10 70.61, 42.66 59.42 2.80 70
11 04/19/2023 09:41:41 -70.48,-149.84 120.72 04/19/2023 09:41:36 -70.48,-149.88 120.72 1.49 5
12 04/19/2023 10:32:16 69.90, 18.36 58.67 04/19/2023 10:31:06 69.99, 17.09 58.80 49.63 70
13 04/21/2023 21:44:50 70.60,-150.81 58.55 04/21/2023 21:45:44 70.60,-150.77 58.54 1.67 54
14 04/21/2023 22:35:31 -70.45, 16.74 121.62 04/21/2023 22:35:10 -70.47, 16.69 121.60 2.87 21

Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 4/8/2023
SNOs_Map_NOAA-21_TERRA_20230409.jpg

Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 04/08/2023 in txt file.

Historial Predications of SNOs between NOAA-21 and TERRA