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: 11/20/2023
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 11/22/2023 15:17:59 -70.94, 125.09 88.99 11/22/2023 15:19:05 -70.82, 127.75 89.13 97.87 66
2 11/22/2023 16:08:25 69.89, -65.93 89.95 11/22/2023 16:08:47 69.90, -65.96 89.96 1.10 22
3 11/22/2023 16:59:07 -69.79, 101.53 90.15 11/22/2023 16:58:17 -69.79, 101.53 90.15 0.53 50
4 11/25/2023 07:34:38 -70.02,-117.67 89.38 11/25/2023 07:35:50 -70.01,-117.57 89.39 3.96 72
5 11/25/2023 08:25:21 69.86, 49.88 90.47 11/25/2023 08:25:18 69.85, 49.85 90.46 1.26 3
6 11/25/2023 09:16:02 -69.70,-142.57 89.69 11/25/2023 09:14:48 -69.74,-142.66 89.64 5.84 74
7 11/27/2023 23:51:34 -69.93, -1.78 88.96 11/27/2023 23:52:22 -69.95, -1.78 88.95 1.86 48
8 11/28/2023 00:42:18 69.83, 165.68 90.94 11/28/2023 00:41:49 69.84, 165.71 90.95 1.71 29
9 11/30/2023 15:18:04 70.81, -54.72 92.39 11/30/2023 15:19:11 70.68, -52.47 92.24 83.74 67
10 11/30/2023 16:08:31 -69.91, 114.01 88.53 11/30/2023 16:08:53 -69.92, 114.06 88.52 2.34 22
11 11/30/2023 16:59:15 69.81, -78.53 91.38 11/30/2023 16:58:20 69.81, -78.45 91.38 2.91 55
12 12/03/2023 07:34:45 69.95, 62.39 91.92 12/03/2023 07:35:54 69.98, 62.38 91.95 2.77 69
13 12/03/2023 08:25:28 -69.90,-130.20 88.13 12/03/2023 08:25:24 -69.88,-130.13 88.15 3.56 4
14 12/03/2023 09:16:06 69.53, 37.64 91.51 12/03/2023 09:14:53 69.60, 37.13 91.58 21.14 73

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 11/20/2023
SNOs_Map_NOAA-21_LANDSAT-9_20231120.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 11/20/2023 in txt file.

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