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: 4/17/2023
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 04/19/2023 07:09:21 70.16, 68.71 58.99 04/19/2023 07:10:14 70.17, 68.78 58.99 2.92 53
2 04/19/2023 08:00:02 -70.03,-123.76 121.17 04/19/2023 07:59:45 -70.01,-123.82 121.19 3.34 17
3 04/19/2023 08:50:32 69.17, 44.80 57.94 04/19/2023 08:49:24 69.24, 42.78 58.06 79.89 68
4 04/21/2023 23:26:10 70.12,-175.43 58.03 04/21/2023 23:26:42 70.09,-175.45 57.99 3.10 32
5 04/22/2023 00:16:51 -69.98, -7.90 122.14 04/22/2023 00:16:12 -69.98, -7.97 122.13 2.65 39
6 04/24/2023 14:52:24 -70.67, 132.18 122.29 04/24/2023 14:53:34 -70.57, 133.49 122.42 49.29 70
7 04/24/2023 15:42:59 70.09, -59.59 57.10 04/24/2023 15:43:08 70.08, -59.58 57.09 0.91 9
8 04/24/2023 16:33:41 -70.00, 107.86 123.01 04/24/2023 16:32:38 -69.97, 107.90 123.03 3.18 63
9 04/27/2023 07:09:04 -70.17,-111.24 123.68 04/27/2023 07:10:07 -70.14,-111.25 123.72 3.45 63
10 04/27/2023 07:59:47 70.01, 56.31 56.15 04/27/2023 07:59:34 70.03, 56.23 56.16 3.21 13
11 04/27/2023 08:50:21 -69.50,-135.62 124.40 04/27/2023 08:49:10 -69.59,-136.74 124.27 44.78 71
12 04/29/2023 23:25:51 -70.11, 4.64 124.59 04/29/2023 23:26:31 -70.10, 4.59 124.60 2.30 40
13 04/30/2023 00:16:35 70.01, 172.11 55.30 04/30/2023 00:15:58 69.98, 172.06 55.28 3.07 37

Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 4/17/2023
SNOs_Map_NOAA-21_LANDSAT-8_20230417.jpg

Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 04/17/2023 in txt file.

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