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: 4/15/2023
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 04/16/2023 14:52:35 70.34, -47.35 60.12 04/16/2023 14:53:46 70.26, -46.98 60.01 16.67 71
2 04/16/2023 15:43:14 -70.10, 120.34 120.15 04/16/2023 15:43:17 -70.09, 120.41 120.17 2.94 3
3 04/16/2023 16:33:57 69.93, -72.09 59.66 04/16/2023 16:32:45 69.93, -72.16 59.67 2.73 72
4 04/19/2023 07:09:22 70.17, 68.70 59.00 04/19/2023 07:10:15 70.17, 68.77 58.99 3.01 53
5 04/19/2023 08:00:03 -70.03,-123.77 121.16 04/19/2023 07:59:45 -70.06,-123.75 121.14 2.47 18
6 04/19/2023 08:50:33 69.18, 44.78 57.95 04/19/2023 08:49:25 69.23, 42.77 58.06 79.58 68
7 04/21/2023 23:26:10 70.13,-175.44 58.03 04/21/2023 23:26:42 70.10,-175.45 58.00 3.27 32
8 04/22/2023 00:16:51 -69.98, -7.91 122.13 04/22/2023 00:16:12 -69.99, -7.97 122.12 2.16 39
9 04/24/2023 14:52:24 -70.67, 132.18 122.29 04/24/2023 14:53:34 -70.59, 133.52 122.41 49.88 70
10 04/24/2023 15:42:59 70.09, -59.60 57.10 04/24/2023 15:43:08 70.10, -59.56 57.10 1.70 9
11 04/24/2023 16:33:41 -70.00, 107.86 123.01 04/24/2023 16:32:38 -69.99, 107.92 123.02 2.59 63
12 04/27/2023 07:09:04 -70.17,-111.24 123.68 04/27/2023 07:10:07 -70.18,-111.20 123.68 1.75 63
13 04/27/2023 07:59:48 70.06, 56.23 56.20 04/27/2023 07:59:34 70.06, 56.28 56.20 1.72 14
14 04/27/2023 08:50:22 -69.55,-135.69 124.35 04/27/2023 08:49:11 -69.57,-136.76 124.29 42.01 71

Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 4/15/2023
SNOs_Map_NOAA-21_LANDSAT-8_20230416.jpg

Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 04/15/2023 in txt file.

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