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: 4/27/2023
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 04/28/2023 15:17:34 -70.20, 126.59 124.08 04/28/2023 15:18:45 -70.19, 126.73 124.10 5.43 71
2 04/28/2023 16:08:17 70.02, -65.83 55.73 04/28/2023 16:08:13 70.03, -65.85 55.74 1.23 4
3 04/28/2023 16:58:57 -69.83, 101.77 124.48 04/28/2023 16:57:44 -69.86, 101.55 124.44 9.14 73
4 05/01/2023 07:34:29 -70.07,-117.47 125.03 05/01/2023 07:35:13 -70.09,-117.52 125.03 2.61 44
5 05/01/2023 08:25:14 70.01, 49.95 54.89 05/01/2023 08:24:40 69.98, 49.97 54.87 2.88 34
6 05/03/2023 23:00:53 70.63,-169.90 54.76 05/03/2023 23:02:03 70.51,-168.66 54.60 47.91 70
7 05/03/2023 23:51:26 -70.07, -1.70 125.84 05/03/2023 23:51:39 -70.07, -1.67 125.84 1.24 13
8 05/04/2023 00:42:10 69.95, 165.79 54.03 05/04/2023 00:41:06 69.96, 165.82 54.04 1.50 64
9 05/06/2023 15:17:40 70.11, -53.32 53.45 05/06/2023 15:18:35 70.12, -53.33 53.46 1.03 55
10 05/06/2023 16:08:22 -70.02, 114.13 126.65 05/06/2023 16:08:05 -70.01, 114.15 126.66 1.06 17
11 05/06/2023 16:58:52 69.16, -77.31 52.46 05/06/2023 16:57:44 69.23, -79.26 52.58 77.71 68
12 05/09/2023 07:34:35 70.07, 62.49 52.68 05/09/2023 07:34:59 70.09, 62.51 52.69 1.30 24
13 05/09/2023 08:25:17 -69.98,-130.05 127.43 05/09/2023 08:24:29 -69.98,-130.01 127.43 1.51 48

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/27/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230427.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 04/27/2023 in txt file.

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