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: 2/19/2023
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 02/20/2023 23:01:47 -70.13, 10.80 99.08 02/20/2023 23:02:52 -70.14, 10.81 99.09 0.94 65
2 02/20/2023 23:52:31 70.01, 178.28 80.79 02/20/2023 23:52:19 70.03, 178.31 80.81 2.37 12
3 02/21/2023 00:43:06 -69.55, -13.72 99.72 02/21/2023 00:41:55 -69.59, -14.68 99.63 37.45 71
4 02/23/2023 15:18:41 -70.05, 126.68 100.14 02/23/2023 15:19:18 -70.07, 126.60 100.13 3.41 37
5 02/23/2023 16:09:25 69.94, -65.84 79.73 02/23/2023 16:08:45 69.96, -65.91 79.76 3.30 40
6 02/26/2023 06:44:58 70.40, 74.59 79.25 02/26/2023 06:46:09 70.29, 75.18 79.10 25.47 71
7 02/26/2023 07:35:35 -70.04,-117.54 101.15 02/26/2023 07:35:41 -70.07,-117.50 101.13 3.09 6
8 02/26/2023 08:26:19 69.93, 49.94 78.72 02/26/2023 08:25:08 69.95, 49.98 78.76 3.11 71
9 02/28/2023 23:01:47 70.09,-169.16 77.90 02/28/2023 23:02:36 70.08,-169.22 77.89 2.38 49
10 02/28/2023 23:52:29 -69.99, -1.69 102.22 02/28/2023 23:52:06 -69.97, -1.74 102.23 2.62 23
11 03/03/2023 14:28:12 -70.94, 137.94 102.21 03/03/2023 14:29:19 -70.88, 140.22 102.37 83.36 67
12 03/03/2023 15:18:41 70.05, -53.34 76.84 03/03/2023 15:18:59 70.05, -53.35 76.84 0.60 18
13 03/03/2023 16:09:23 -69.95, 114.13 103.29 03/03/2023 16:08:29 -69.95, 114.13 103.28 0.38 54

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/19/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230219.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 02/19/2023 in txt file.

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