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: 1/20/2023
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 01/22/2023 14:28:26 70.84, -41.85 90.54 01/22/2023 14:29:34 70.74, -39.98 90.36 69.21 68
2 01/22/2023 15:18:55 -70.07, 126.69 90.29 01/22/2023 15:19:14 -70.08, 126.68 90.28 1.68 19
3 01/22/2023 16:09:39 69.95, -65.82 89.59 01/22/2023 16:08:41 69.97, -65.82 89.61 2.46 58
4 01/25/2023 06:45:06 70.13, 75.05 89.17 01/25/2023 06:46:09 70.14, 75.03 89.16 0.70 63
5 01/25/2023 07:35:48 -70.04,-117.50 90.94 01/25/2023 07:35:39 -70.03,-117.50 90.96 2.06 9
6 01/25/2023 08:26:23 69.45, 50.68 88.43 01/25/2023 08:25:13 69.53, 49.46 88.56 48.20 70
7 01/27/2023 23:01:58 70.07,-169.09 88.43 01/27/2023 23:02:33 70.09,-169.14 88.44 2.50 35
8 01/27/2023 23:52:40 -69.98, -1.63 91.68 01/27/2023 23:52:03 -69.98, -1.66 91.68 1.06 37
9 01/30/2023 14:28:13 -70.55, 138.63 91.77 01/30/2023 14:29:23 -70.44, 139.63 91.94 39.21 70
10 01/30/2023 15:18:50 70.08, -53.32 87.72 01/30/2023 15:18:55 70.05, -53.29 87.69 3.25 5
11 01/30/2023 16:09:31 -69.93, 114.22 92.45 01/30/2023 16:08:25 -69.94, 114.20 92.43 1.83 66
12 02/02/2023 06:44:58 -70.14,-104.96 92.96 02/02/2023 06:45:50 -70.14,-104.89 92.97 2.50 52
13 02/02/2023 07:35:42 70.04, 62.51 86.93 02/02/2023 07:35:17 70.02, 62.58 86.91 3.44 25

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/20/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230120.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 01/20/2023 in txt file.

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