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: 4/1/2023
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 -71.48, 122.75 113.08 04/01/2023 15:26:09 -71.35, 125.43 113.31 96.23 66
2 04/01/2023 16:15:30 70.49, -68.27 65.86 04/01/2023 16:15:46 70.47, -68.25 65.84 1.85 16
3 04/01/2023 17:06:11 -70.35, 99.27 114.31 04/01/2023 17:05:12 -70.36, 99.24 114.29 1.91 59
4 04/04/2023 04:18:45 -70.98, -69.85 114.60 04/04/2023 04:19:55 -70.91, -68.70 114.72 42.65 70
5 04/04/2023 05:09:21 70.45, 98.32 64.84 04/04/2023 05:09:24 70.46, 98.30 64.85 0.99 3
6 04/04/2023 06:00:03 -70.36, -94.22 115.27 04/04/2023 05:58:50 -70.35, -94.21 115.28 1.73 73
7 04/06/2023 17:12:29 -70.59, 97.32 115.98 04/06/2023 17:13:38 -70.57, 97.37 116.01 2.88 69
8 04/06/2023 18:03:12 70.43, -95.12 63.85 04/06/2023 18:03:01 70.45, -95.14 63.87 2.57 11
9 04/06/2023 18:53:45 -69.87, 73.07 116.76 04/06/2023 18:52:35 -69.90, 71.73 116.67 51.44 70
10 04/09/2023 06:06:20 -70.58, -96.13 116.95 04/09/2023 06:07:14 -70.57, -96.06 116.97 2.91 54
11 04/09/2023 06:57:02 70.42, 71.43 62.88 04/09/2023 06:56:36 70.45, 71.44 62.91 3.26 26
12 04/11/2023 19:00:09 -70.53, 70.49 117.94 04/11/2023 19:00:49 -70.52, 70.45 117.96 2.01 40
13 04/11/2023 19:50:53 70.43,-122.04 61.94 04/11/2023 19:50:12 70.40,-122.06 61.92 3.00 41
14 04/14/2023 07:54:00 -70.54,-123.00 118.85 04/14/2023 07:54:23 -70.52,-122.96 118.88 2.73 23
15 04/14/2023 08:44:43 70.39, 44.55 60.98 04/14/2023 08:43:46 70.41, 44.54 61.00 1.97 57

Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 4/1/2023
SNOs_Map_NOAA-21_TERRA_20230401.jpg

Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 04/01/2023 in txt file.

Historial Predications of SNOs between NOAA-21 and TERRA