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: 5/20/2023
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 05/22/2023 15:17:46 70.10, -53.36 49.61 05/22/2023 15:18:30 70.13, -53.34 49.63 3.28 44
2 05/22/2023 16:08:28 -70.02, 114.08 130.48 05/22/2023 16:08:00 -70.01, 114.12 130.49 1.93 28
3 05/25/2023 06:44:10 -70.92,-106.22 130.04 05/25/2023 06:45:17 -70.83,-104.07 130.18 78.69 67
4 05/25/2023 07:34:40 70.07, 62.46 49.07 05/25/2023 07:34:56 70.07, 62.45 49.07 0.24 16
5 05/25/2023 08:25:22 -69.98,-130.10 131.03 05/25/2023 08:24:26 -69.95,-130.08 131.05 3.31 56
6 05/27/2023 23:00:51 -70.16, 10.77 131.29 05/27/2023 23:01:55 -70.14, 10.80 131.31 2.02 64
7 05/27/2023 23:51:35 70.04, 178.26 48.59 05/27/2023 23:51:22 70.03, 178.29 48.58 1.32 13
8 05/28/2023 00:42:09 -69.53, -13.66 131.95 05/28/2023 00:40:58 -69.59, -14.69 131.86 40.25 71
9 05/30/2023 15:17:45 -70.08, 126.65 131.78 05/30/2023 15:18:21 -70.08, 126.61 131.79 1.76 36
10 05/30/2023 16:08:29 69.97, -65.87 48.10 05/30/2023 16:07:48 69.97, -65.91 48.10 1.64 41
11 06/02/2023 06:44:02 70.38, 74.65 48.16 06/02/2023 06:45:14 70.27, 75.13 48.03 21.80 72
12 06/02/2023 07:34:40 -70.07,-117.56 132.16 06/02/2023 07:34:46 -70.05,-117.55 132.19 2.20 6
13 06/02/2023 08:25:24 69.96, 49.91 47.72 06/02/2023 08:24:13 69.94, 49.94 47.70 2.90 71

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/20/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230521.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 05/20/2023 in txt file.

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