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: 7/16/2023
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 -70.10, 126.64 131.06 07/17/2023 15:18:37 -70.10, 126.73 131.08 3.24 71
2 07/17/2023 16:08:09 69.94, -65.80 48.78 07/17/2023 16:08:05 69.95, -65.84 48.79 1.92 4
3 07/17/2023 16:58:49 -69.74, 101.81 131.43 07/17/2023 16:57:36 -69.78, 101.55 131.37 10.82 73
4 07/20/2023 07:34:18 -70.05,-117.50 130.63 07/20/2023 07:35:07 -70.04,-117.47 130.65 1.57 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 2.60 28
6 07/20/2023 09:15:26 -68.89,-141.21 131.83 07/20/2023 09:14:20 -68.95,-143.67 131.67 98.29 66
7 07/22/2023 23:51:10 -70.01, -1.66 130.16 07/22/2023 23:51:36 -70.02, -1.62 130.16 1.82 26
8 07/23/2023 00:41:54 69.90, 165.80 49.74 07/23/2023 00:41:03 69.91, 165.88 49.75 2.86 51
9 07/25/2023 15:17:21 70.18, -53.46 50.58 07/25/2023 15:18:33 70.13, -53.21 50.50 11.24 72
10 07/25/2023 16:08:01 -69.97, 114.17 129.64 07/25/2023 16:08:04 -69.96, 114.20 129.65 1.13 3
11 07/25/2023 16:58:44 69.82, -78.29 50.21 07/25/2023 16:57:31 69.85, -78.31 50.26 4.25 73
12 07/28/2023 07:34:11 70.04, 62.52 51.03 07/28/2023 07:35:02 70.05, 62.57 51.03 2.00 51
13 07/28/2023 08:24:53 -69.94,-130.00 129.07 07/28/2023 08:24:32 -69.94,-129.94 129.07 2.32 21

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/16/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230717.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 07/16/2023 in txt file.

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