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: 3/7/2023
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 03/08/2023 23:01:44 -70.09, 10.82 105.19 03/08/2023 23:02:41 -70.09, 10.76 105.20 2.39 57
2 03/08/2023 23:52:28 69.98, 178.30 74.68 03/08/2023 23:52:08 69.98, 178.25 74.69 1.92 20
3 03/09/2023 00:42:57 -69.20, -13.25 106.16 03/09/2023 00:41:49 -69.27, -15.09 106.01 72.90 68
4 03/11/2023 15:18:37 -70.05, 126.66 106.29 03/11/2023 15:19:06 -70.07, 126.62 106.28 2.60 29
5 03/11/2023 16:09:21 69.94, -65.87 73.58 03/11/2023 16:08:33 69.96, -65.89 73.61 2.39 48
6 03/14/2023 06:44:48 70.17, 74.92 72.79 03/14/2023 06:45:59 70.15, 75.00 72.76 3.63 71
7 03/14/2023 07:35:29 -70.02,-117.53 107.38 03/14/2023 07:35:29 -70.04,-117.52 107.36 2.36 0
8 03/14/2023 08:26:10 69.76, 50.18 72.33 03/14/2023 08:24:58 69.82, 49.81 72.42 15.61 72
9 03/16/2023 23:01:40 70.11,-169.21 71.67 03/16/2023 23:02:22 70.12,-169.14 71.67 2.88 42
10 03/16/2023 23:52:21 -69.96, -1.66 108.51 03/16/2023 23:51:53 -69.96, -1.74 108.51 2.78 28
11 03/19/2023 14:28:00 -70.80, 138.16 108.66 03/19/2023 14:29:08 -70.70, 139.96 108.84 67.02 68
12 03/19/2023 15:18:31 70.02, -53.29 70.50 03/19/2023 15:18:45 70.03, -53.36 70.51 3.03 14
13 03/19/2023 16:09:13 -69.92, 114.18 109.62 03/19/2023 16:08:15 -69.92, 114.12 109.61 2.31 58

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/7/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230307.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 03/07/2023 in txt file.

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