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: 4/30/2023
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 05/02/2023 14:52:25 70.67, -47.85 55.20 05/02/2023 14:53:35 70.58, -46.54 55.07 49.48 70
2 05/02/2023 15:42:57 -70.06, 120.43 125.45 05/02/2023 15:43:12 -70.08, 120.37 125.43 2.90 15
3 05/02/2023 16:33:42 69.99, -72.15 54.47 05/02/2023 16:32:39 69.97, -72.13 54.46 2.30 63
4 05/05/2023 07:09:12 70.15, 68.74 53.87 05/05/2023 07:10:10 70.14, 68.70 53.85 2.20 58
5 05/05/2023 07:59:54 -70.06,-123.81 126.23 05/05/2023 07:59:39 -70.08,-123.75 126.21 3.24 15
6 05/05/2023 08:50:26 69.30, 44.61 52.98 05/05/2023 08:49:17 69.36, 42.92 53.09 66.76 69
7 05/07/2023 23:26:08 70.11,-175.44 53.08 05/07/2023 23:26:37 70.11,-175.46 53.08 0.70 29
8 05/08/2023 00:16:50 -70.02, -7.98 127.03 05/08/2023 00:16:07 -70.01, -7.97 127.04 1.59 43
9 05/10/2023 14:52:22 -70.35, 132.64 127.38 05/10/2023 14:53:34 -70.29, 133.03 127.46 16.22 72
10 05/10/2023 15:43:03 70.08, -59.63 52.33 05/10/2023 15:43:03 70.06, -59.64 52.32 1.68 0
11 05/10/2023 16:33:45 -69.98, 107.83 127.78 05/10/2023 16:32:33 -69.96, 107.84 127.80 2.93 72
12 05/13/2023 07:09:15 -70.17,-111.31 128.25 05/13/2023 07:10:02 -70.16,-111.26 128.26 1.94 47
13 05/13/2023 07:59:59 70.05, 56.17 51.63 05/13/2023 07:59:29 70.04, 56.22 51.62 2.15 30

Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 4/30/2023
SNOs_Map_NOAA-21_LANDSAT-8_20230430.jpg

Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 04/30/2023 in txt file.

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