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: 4/14/2023
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 04/14/2023 07:54:01 -70.55,-123.01 118.85 04/14/2023 07:54:26 -70.53,-122.96 118.87 2.42 25
2 04/14/2023 08:44:44 70.38, 44.56 60.97 04/14/2023 08:43:50 70.38, 44.48 60.98 3.00 54
3 04/16/2023 19:57:19 71.11,-124.73 60.85 04/16/2023 19:58:28 71.04,-123.27 60.73 53.30 69
4 04/16/2023 20:47:51 -70.50, 43.59 119.81 04/16/2023 20:48:01 -70.52, 43.60 119.79 1.92 10
5 04/16/2023 21:38:35 70.39,-148.92 60.07 04/16/2023 21:37:25 70.37,-148.96 60.05 2.88 70
6 04/19/2023 08:51:00 70.61, 42.64 59.43 04/19/2023 08:52:10 70.61, 42.66 59.42 0.79 70
7 04/19/2023 09:41:41 -70.46,-149.82 120.74 04/19/2023 09:41:36 -70.47,-149.89 120.73 2.85 5
8 04/19/2023 10:32:16 69.88, 18.39 58.65 04/19/2023 10:31:06 69.99, 17.08 58.80 51.35 70
9 04/21/2023 21:44:49 70.58,-150.79 58.53 04/21/2023 21:45:43 70.58,-150.79 58.52 0.38 54
10 04/21/2023 22:35:31 -70.49, 16.68 121.58 04/21/2023 22:35:08 -70.50, 16.73 121.58 2.16 23
11 04/24/2023 10:38:39 70.57, 15.77 57.67 04/24/2023 10:39:16 70.57, 15.78 57.67 0.70 37
12 04/24/2023 11:29:21 -70.48,-176.76 122.45 04/24/2023 11:28:41 -70.49,-176.69 122.43 3.08 40
13 04/26/2023 23:32:29 70.57,-177.69 56.84 04/26/2023 23:32:49 70.53,-177.68 56.80 3.67 20
14 04/27/2023 00:23:11 -70.47, -10.22 123.28 04/27/2023 00:22:14 -70.45, -10.16 123.30 3.26 57

Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 4/14/2023
SNOs_Map_NOAA-21_TERRA_20230414.jpg

Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 04/14/2023 in txt file.

Historial Predications of SNOs between NOAA-21 and TERRA