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: 7/15/2023
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 07/17/2023 15:17:26 -70.09, 126.65 131.07 07/17/2023 15:18:37 -70.10, 126.73 131.07 3.26 71
2 07/17/2023 16:08:09 69.93, -65.80 48.77 07/17/2023 16:08:05 69.95, -65.84 48.79 2.43 4
3 07/17/2023 16:58:49 -69.73, 101.82 131.44 07/17/2023 16:57:36 -69.78, 101.56 131.37 11.38 73
4 07/20/2023 07:34:18 -70.05,-117.50 130.64 07/20/2023 07:35:07 -70.04,-117.47 130.66 1.21 49
5 07/20/2023 08:25:02 69.94, 49.97 49.26 07/20/2023 08:24:34 69.94, 50.03 49.26 2.29 28
6 07/20/2023 09:15:26 -68.89,-141.21 131.84 07/20/2023 09:14:20 -68.94,-143.67 131.67 98.68 66
7 07/22/2023 23:51:09 -70.01, -1.66 130.16 07/22/2023 23:51:35 -70.00, -1.64 130.17 0.92 26
8 07/23/2023 00:41:53 69.90, 165.80 49.74 07/23/2023 00:41:02 69.90, 165.86 49.74 2.31 51
9 07/25/2023 15:17:21 70.18, -53.47 50.58 07/25/2023 15:18:32 70.16, -53.16 50.53 11.94 71
10 07/25/2023 16:08:01 -69.97, 114.17 129.64 07/25/2023 16:08:04 -69.94, 114.17 129.67 3.47 3
11 07/25/2023 16:58:44 69.82, -78.29 50.22 07/25/2023 16:57:31 69.83, -78.34 50.24 2.15 73
12 07/28/2023 07:34:10 70.00, 62.59 50.99 07/28/2023 07:35:02 70.01, 62.52 50.99 2.80 52
13 07/28/2023 08:24:52 -69.89,-129.93 129.12 07/28/2023 08:24:32 -69.91,-129.99 129.10 2.59 20

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/15/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230715.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 07/15/2023 in txt file.

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