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: 6/19/2023
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 06/20/2023 23:00:49 70.11,-169.19 46.64 06/20/2023 23:01:50 70.11,-169.12 46.63 2.56 61
2 06/20/2023 23:51:30 -69.97, -1.66 133.51 06/20/2023 23:51:20 -70.00, -1.65 133.48 3.02 10
3 06/21/2023 00:42:05 69.38, 166.52 45.88 06/21/2023 00:40:55 69.45, 165.25 46.00 50.65 70
4 06/23/2023 15:17:42 70.05, -53.32 46.59 06/23/2023 15:18:20 70.05, -53.33 46.58 0.40 38
5 06/23/2023 16:08:24 -69.96, 114.14 133.51 06/23/2023 16:07:50 -69.94, 114.16 133.52 2.16 34
6 06/26/2023 06:44:03 -70.78,-106.02 132.57 06/26/2023 06:45:11 -70.67,-104.17 132.76 68.92 68
7 06/26/2023 07:34:34 69.99, 62.54 46.60 06/26/2023 07:34:48 70.01, 62.51 46.62 2.38 14
8 06/26/2023 08:25:16 -69.90,-130.00 133.50 06/26/2023 08:24:18 -69.91,-130.00 133.48 1.25 58
9 06/28/2023 23:00:44 -70.10, 10.84 133.18 06/28/2023 23:01:50 -70.07, 10.84 133.22 3.53 66
10 06/28/2023 23:51:27 69.94, 178.39 46.66 06/28/2023 23:51:17 69.95, 178.32 46.68 2.82 10
11 06/29/2023 00:42:03 -69.53, -13.68 133.77 06/29/2023 00:40:52 -69.58, -14.57 133.68 34.89 71
12 07/01/2023 15:17:37 -70.05, 126.68 133.06 07/01/2023 15:18:18 -70.04, 126.69 133.08 1.36 41
13 07/01/2023 16:08:20 69.90, -65.78 46.78 07/01/2023 16:07:45 69.92, -65.83 46.81 3.29 35

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/19/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230620.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 06/19/2023 in txt file.

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