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: 3/31/2023
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 04/01/2023 15:25:03 -71.47, 122.77 113.09 04/01/2023 15:26:09 -71.36, 125.45 113.31 95.77 66
2 04/01/2023 16:15:30 70.48, -68.25 65.85 04/01/2023 16:15:46 70.48, -68.24 65.84 0.54 16
3 04/01/2023 17:06:12 -70.39, 99.21 114.27 04/01/2023 17:05:12 -70.37, 99.25 114.28 2.97 60
4 04/04/2023 04:18:45 -70.97, -69.83 114.61 04/04/2023 04:19:56 -70.85, -68.78 114.78 40.59 71
5 04/04/2023 05:09:21 70.44, 98.33 64.83 04/04/2023 05:09:24 70.46, 98.30 64.84 1.88 3
6 04/04/2023 06:00:03 -70.35, -94.21 115.28 04/04/2023 05:58:50 -70.35, -94.21 115.28 0.89 73
7 04/06/2023 17:12:28 -70.58, 97.34 115.99 04/06/2023 17:13:37 -70.56, 97.35 116.02 2.96 69
8 04/06/2023 18:03:11 70.42, -95.10 63.84 04/06/2023 18:03:00 70.44, -95.16 63.86 2.50 11
9 04/06/2023 18:53:44 -69.86, 73.08 116.77 04/06/2023 18:52:34 -69.89, 71.71 116.69 52.57 70
10 04/09/2023 06:06:18 -70.52, -96.03 117.01 04/09/2023 06:07:13 -70.54, -96.10 117.00 3.11 55
11 04/09/2023 06:57:02 70.42, 71.44 62.88 04/09/2023 06:56:36 70.42, 71.40 62.88 1.70 26
12 04/11/2023 19:00:09 -70.52, 70.50 117.95 04/11/2023 19:00:48 -70.52, 70.46 117.95 1.25 39
13 04/11/2023 19:50:53 70.42,-122.04 61.94 04/11/2023 19:50:11 70.41,-122.05 61.93 1.95 42

Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 3/31/2023
SNOs_Map_NOAA-21_TERRA_20230331.jpg

Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 03/31/2023 in txt file.

Historial Predications of SNOs between NOAA-21 and TERRA