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: 4/11/2023
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 04/11/2023 19:00:10 -70.52, 70.50 117.95 04/11/2023 19:00:51 -70.54, 70.48 117.93 3.01 41
2 04/11/2023 19:50:54 70.40,-122.01 61.92 04/11/2023 19:50:15 70.39,-122.09 61.91 3.25 39
3 04/14/2023 07:54:00 -70.51,-122.96 118.88 04/14/2023 07:54:26 -70.51,-122.99 118.89 1.05 26
4 04/14/2023 08:44:44 70.40, 44.52 60.99 04/14/2023 08:43:49 70.41, 44.52 61.01 1.05 55
5 04/16/2023 19:57:19 71.13,-124.77 60.87 04/16/2023 19:58:28 71.02,-123.30 60.71 54.42 69
6 04/16/2023 20:47:51 -70.52, 43.57 119.79 04/16/2023 20:48:01 -70.50, 43.58 119.81 1.50 10
7 04/16/2023 21:38:35 70.41,-148.96 60.09 04/16/2023 21:37:24 70.40,-148.91 60.09 1.91 71
8 04/19/2023 08:51:00 70.62, 42.61 59.45 04/19/2023 08:52:10 70.60, 42.65 59.41 2.93 70
9 04/19/2023 09:41:41 -70.48,-149.84 120.72 04/19/2023 09:41:36 -70.47,-149.90 120.73 2.62 5
10 04/19/2023 10:32:16 69.90, 18.37 58.67 04/19/2023 10:31:06 69.98, 17.07 58.79 50.23 70
11 04/21/2023 21:44:50 70.59,-150.81 58.54 04/21/2023 21:45:44 70.59,-150.79 58.53 1.25 54
12 04/21/2023 22:35:32 -70.50, 16.66 121.57 04/21/2023 22:35:09 -70.50, 16.74 121.57 3.04 23
13 04/24/2023 10:38:40 70.57, 15.76 57.67 04/24/2023 10:39:17 70.59, 15.81 57.68 2.78 37
14 04/24/2023 11:29:22 -70.48,-176.77 122.44 04/24/2023 11:28:43 -70.46,-176.74 122.46 2.44 39

Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 4/11/2023
SNOs_Map_NOAA-21_TERRA_20230411.jpg

Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 04/11/2023 in txt file.

Historial Predications of SNOs between NOAA-21 and TERRA