Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and LANDSAT-8 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 7/19/2023
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (LANDSAT-8) Time (LANDSAT-8) Lat,Lon (LANDSAT-8) SZA (LANDSAT-8 ) Distance(km) Time Diff (sec)
1 07/21/2023 15:42:44 -70.03, 120.41 130.40 07/21/2023 15:43:27 -70.01, 120.44 130.43 2.41 43
2 07/21/2023 16:33:28 69.92, -72.12 49.50 07/21/2023 16:32:54 69.91, -72.06 49.49 2.51 34
3 07/24/2023 07:09:06 70.78, 67.70 50.93 07/24/2023 07:10:14 70.66, 69.64 50.73 72.59 68
4 07/24/2023 07:59:35 -70.00,-123.75 129.90 07/24/2023 07:59:54 -70.00,-123.69 129.89 2.73 19
5 07/24/2023 08:50:18 69.84, 43.79 49.95 07/24/2023 08:49:22 69.84, 43.73 49.96 2.47 56
6 07/26/2023 23:25:45 70.06,-175.40 50.75 07/26/2023 23:26:52 70.08,-175.33 50.75 3.01 67
7 07/27/2023 00:16:26 -69.91, -7.85 129.40 07/27/2023 00:16:23 -69.91, -7.92 129.40 2.74 3
8 07/27/2023 01:07:05 69.54, 160.00 50.22 07/27/2023 01:05:53 69.64, 159.34 50.35 27.70 72
9 07/29/2023 15:42:36 69.99, -59.51 51.29 07/29/2023 15:43:20 70.01, -59.52 51.30 2.38 44
10 07/29/2023 16:33:18 -69.89, 107.96 128.81 07/29/2023 16:32:50 -69.91, 107.96 128.79 1.96 28
11 08/01/2023 07:09:00 -70.91,-112.50 127.09 08/01/2023 07:10:07 -70.80,-110.11 127.30 88.14 67
12 08/01/2023 07:59:28 69.98, 56.29 51.93 08/01/2023 07:59:47 69.98, 56.32 51.92 1.11 19
13 08/01/2023 08:50:10 -69.87,-136.23 128.17 08/01/2023 08:49:17 -69.87,-136.19 128.17 1.75 53

Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 7/19/2023
SNOs_Map_NOAA-21_LANDSAT-8_20230720.jpg

Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 07/19/2023 in txt file.

Historial Predications of SNOs between NOAA-21 and LANDSAT-8