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: 2/20/2023
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 02/20/2023 23:01:47 -70.12, 10.82 99.10 02/20/2023 23:02:52 -70.15, 10.82 99.08 3.25 65
2 02/20/2023 23:52:31 70.00, 178.30 80.77 02/20/2023 23:52:20 69.99, 178.24 80.76 2.64 11
3 02/21/2023 00:43:06 -69.54, -13.70 99.73 02/21/2023 00:41:55 -69.60, -14.67 99.62 37.97 71
4 02/23/2023 15:18:41 -70.09, 126.62 100.10 02/23/2023 15:19:17 -70.08, 126.61 100.12 1.53 36
5 02/23/2023 16:09:25 69.98, -65.90 79.77 02/23/2023 16:08:44 69.97, -65.89 79.77 0.76 41
6 02/26/2023 06:44:58 70.38, 74.62 79.23 02/26/2023 06:46:09 70.30, 75.20 79.11 23.31 71
7 02/26/2023 07:35:35 -70.02,-117.51 101.17 02/26/2023 07:35:42 -70.02,-117.57 101.17 2.29 7
8 02/26/2023 08:26:19 69.91, 49.97 78.70 02/26/2023 08:25:09 69.91, 49.92 78.72 1.72 70
9 02/28/2023 23:01:48 70.11,-169.20 77.93 02/28/2023 23:02:36 70.10,-169.20 77.90 1.80 48
10 02/28/2023 23:52:30 -70.01, -1.73 102.19 02/28/2023 23:52:06 -69.99, -1.72 102.22 3.04 24
11 03/03/2023 14:28:13 -70.95, 137.91 102.19 03/03/2023 14:29:20 -70.84, 140.17 102.40 83.05 67
12 03/03/2023 15:18:42 70.07, -53.36 76.86 03/03/2023 15:18:59 70.07, -53.32 76.86 1.67 17
13 03/03/2023 16:09:24 -69.96, 114.11 103.27 03/03/2023 16:08:29 -69.97, 114.16 103.26 1.86 55

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/20/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230220.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 02/20/2023 in txt file.

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