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: 7/21/2023
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 07/22/2023 23:51:09 -70.00, -1.65 130.17 07/22/2023 23:51:35 -70.01, -1.63 130.16 1.42 26
2 07/23/2023 00:41:53 69.89, 165.83 49.73 07/23/2023 00:41:02 69.91, 165.88 49.75 3.04 51
3 07/25/2023 15:17:21 70.17, -53.44 50.57 07/25/2023 15:18:33 70.11, -53.22 50.49 10.30 72
4 07/25/2023 16:08:01 -69.97, 114.18 129.64 07/25/2023 16:08:04 -69.94, 114.17 129.67 2.36 3
5 07/25/2023 16:58:44 69.81, -78.27 50.20 07/25/2023 16:57:31 69.84, -78.33 50.25 4.42 73
6 07/28/2023 07:34:11 70.04, 62.53 51.03 07/28/2023 07:35:02 70.02, 62.53 51.00 2.32 51
7 07/28/2023 08:24:52 -69.89,-129.92 129.13 07/28/2023 08:24:32 -69.91,-129.99 129.10 3.44 20
8 07/28/2023 09:15:20 68.93, 38.75 49.88 07/28/2023 09:14:14 68.97, 36.40 50.03 94.11 66
9 07/30/2023 23:51:02 70.02, 178.34 51.65 07/30/2023 23:51:28 70.00, 178.41 51.62 3.37 26
10 07/31/2023 00:41:43 -69.87, -14.11 128.51 07/31/2023 00:40:58 -69.89, -14.11 128.48 3.03 45
11 08/02/2023 15:17:14 -70.32, 126.35 127.38 08/02/2023 15:18:25 -70.24, 127.00 127.50 25.90 71
12 08/02/2023 16:07:53 69.96, -65.79 52.25 08/02/2023 16:07:55 69.96, -65.75 52.25 1.26 2
13 08/02/2023 16:58:35 -69.85, 101.68 127.85 08/02/2023 16:57:25 -69.85, 101.73 127.85 1.74 70

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/21/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230723.jpg

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

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