Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and LANDSAT-9 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 1/31/2023
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (LANDSAT-9) Time (LANDSAT-9) Lat,Lon (LANDSAT-9) SZA (LANDSAT-9 ) Distance(km) Time Diff (sec)
1 02/02/2023 06:45:12 -70.86,-106.11 92.19 02/02/2023 06:46:20 -70.76,-104.16 92.38 71.99 68
2 02/02/2023 07:35:43 70.06, 62.47 86.96 02/02/2023 07:35:58 70.06, 62.45 86.95 0.91 15
3 02/02/2023 08:26:24 -69.93,-130.00 93.21 02/02/2023 08:25:28 -69.95,-130.07 93.17 3.39 56
4 02/04/2023 23:01:51 -70.14, 10.82 93.75 02/04/2023 23:03:02 -70.13, 10.79 93.76 1.42 71
5 02/04/2023 23:52:35 70.02, 178.30 86.13 02/04/2023 23:52:29 70.03, 178.28 86.13 0.82 6
6 02/05/2023 00:43:14 -69.78, -14.01 94.15 02/05/2023 00:42:01 -69.81, -14.39 94.09 15.03 73
7 02/07/2023 15:18:42 -70.10, 126.65 94.61 02/07/2023 15:19:32 -70.09, 126.59 94.63 2.59 50
8 02/07/2023 16:09:26 69.99, -65.87 85.27 02/07/2023 16:08:59 69.98, -65.91 85.27 1.88 27
9 02/07/2023 16:59:51 -69.00, 102.87 95.79 02/07/2023 16:58:44 -69.05, 100.47 95.62 96.00 67
10 02/10/2023 07:35:34 -70.07,-117.53 95.49 02/10/2023 07:36:02 -70.08,-117.55 95.49 1.22 28
11 02/10/2023 08:26:18 69.96, 49.94 84.39 02/10/2023 08:25:29 69.97, 49.94 84.40 0.52 49
12 02/12/2023 23:01:48 70.35,-169.51 83.94 02/12/2023 23:03:00 70.26,-169.04 83.82 20.35 72
13 02/12/2023 23:52:26 -70.04, -1.71 96.40 02/12/2023 23:52:32 -70.05, -1.71 96.40 0.34 6
14 02/13/2023 00:43:10 69.94, 165.75 83.48 02/13/2023 00:41:59 69.93, 165.77 83.49 1.05 71

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/31/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230131.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 01/31/2023 in txt file.

Historial Predications of SNOs between NOAA-21 and LANDSAT-9