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, -96.05 117.00 04/09/2023 06:07:15 -70.55, -96.09 116.99 2.87 56
2 04/09/2023 06:57:03 70.41, 71.44 62.87 04/09/2023 06:56:38 70.44, 71.42 62.91 3.39 25
3 04/11/2023 19:00:11 -70.57, 70.42 117.90 04/11/2023 19:00:51 -70.55, 70.49 117.93 3.07 40
4 04/11/2023 19:50:54 70.40,-122.01 61.92 04/11/2023 19:50:15 70.39,-122.08 61.91 3.00 39
5 04/14/2023 07:54:00 -70.51,-122.96 118.89 04/14/2023 07:54:26 -70.52,-122.98 118.88 1.32 26
6 04/14/2023 08:44:44 70.40, 44.52 60.99 04/14/2023 08:43:49 70.41, 44.53 61.01 1.32 55
7 04/16/2023 19:57:19 71.13,-124.77 60.87 04/16/2023 19:58:28 71.02,-123.29 60.71 54.57 69
8 04/16/2023 20:47:51 -70.52, 43.57 119.79 04/16/2023 20:48:01 -70.51, 43.59 119.80 0.94 10
9 04/16/2023 21:38:35 70.41,-148.96 60.09 04/16/2023 21:37:24 70.41,-148.90 60.09 2.07 71
10 04/19/2023 08:50:59 70.57, 42.69 59.39 04/19/2023 08:52:10 70.60, 42.65 59.41 3.19 71
11 04/19/2023 09:41:41 -70.48,-149.84 120.72 04/19/2023 09:41:36 -70.47,-149.89 120.73 2.41 5
12 04/19/2023 10:32:16 69.90, 18.36 58.67 04/19/2023 10:31:06 69.98, 17.07 58.79 50.01 70
13 04/21/2023 21:44:50 70.60,-150.81 58.55 04/21/2023 21:45:44 70.58,-150.80 58.52 2.39 54
14 04/21/2023 22:35:31 -70.45, 16.74 121.62 04/21/2023 22:35:10 -70.45, 16.66 121.62 3.02 21

Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 4/8/2023
SNOs_Map_NOAA-21_TERRA_20230408.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