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: 2/1/2023
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 -70.85,-106.09 92.20 02/02/2023 06:46:20 -70.76,-104.16 92.38 71.61 68
2 02/02/2023 07:35:43 70.06, 62.48 86.95 02/02/2023 07:35:58 70.06, 62.46 86.95 0.91 15
3 02/02/2023 08:26:25 -69.97,-130.07 93.16 02/02/2023 08:25:28 -69.95,-130.07 93.17 2.48 57
4 02/04/2023 23:01:51 -70.13, 10.83 93.75 02/04/2023 23:03:02 -70.13, 10.79 93.77 1.73 71
5 02/04/2023 23:52:35 70.02, 178.31 86.12 02/04/2023 23:52:29 70.03, 178.28 86.13 1.60 6
6 02/05/2023 00:43:14 -69.77, -14.00 94.16 02/05/2023 00:42:01 -69.81, -14.39 94.09 15.53 73
7 02/07/2023 15:18:42 -70.10, 126.66 94.61 02/07/2023 15:19:32 -70.08, 126.59 94.63 3.26 50
8 02/07/2023 16:09:26 69.98, -65.86 85.27 02/07/2023 16:08:59 69.97, -65.92 85.26 2.45 27
9 02/07/2023 16:59:51 -68.99, 102.88 95.79 02/07/2023 16:58:44 -69.04, 100.46 95.63 96.60 67
10 02/10/2023 07:35:34 -70.07,-117.52 95.50 02/10/2023 07:36:02 -70.06,-117.56 95.50 1.71 28
11 02/10/2023 08:26:18 69.96, 49.95 84.38 02/10/2023 08:25:29 69.95, 49.93 84.39 1.10 49
12 02/12/2023 23:01:48 70.35,-169.50 83.94 02/12/2023 23:02:59 70.29,-168.99 83.85 20.20 71
13 02/12/2023 23:52:26 -70.04, -1.71 96.40 02/12/2023 23:52:32 -70.02, -1.74 96.42 2.31 6
14 02/13/2023 00:43:10 69.94, 165.76 83.48 02/13/2023 00:41:59 69.91, 165.74 83.47 2.92 71

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/1/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230201.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 02/01/2023 in txt file.

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