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: 12/1/2023
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 12/03/2023 07:34:43 69.94, 62.42 91.91 12/03/2023 07:35:48 69.97, 62.38 91.93 3.09 65
2 12/03/2023 08:25:25 -69.84,-130.12 88.19 12/03/2023 08:25:18 -69.85,-130.14 88.18 1.35 7
3 12/03/2023 09:16:02 69.36, 37.89 91.34 12/03/2023 09:14:51 69.42, 36.91 91.40 39.04 71
4 12/05/2023 23:51:38 69.93, 178.20 92.26 12/05/2023 23:52:15 69.91, 178.19 92.24 2.12 37
5 12/06/2023 00:42:20 -69.83, -14.33 87.84 12/06/2023 00:41:45 -69.80, -14.33 87.88 3.27 35
6 12/08/2023 15:17:58 -70.46, 125.85 86.91 12/08/2023 15:19:08 -70.35, 127.08 87.02 47.21 70
7 12/08/2023 16:08:33 69.88, -65.95 92.51 12/08/2023 16:08:42 69.86, -65.99 92.49 2.40 9
8 12/08/2023 16:59:15 -69.78, 101.52 87.59 12/08/2023 16:58:12 -69.75, 101.50 87.62 2.87 63
9 12/11/2023 07:34:44 -69.95,-117.60 87.17 12/11/2023 07:35:41 -69.93,-117.63 87.19 2.20 57
10 12/11/2023 08:25:28 69.84, 49.87 92.73 12/11/2023 08:25:08 69.82, 49.85 92.71 3.05 20
11 12/11/2023 09:15:57 -69.05,-141.68 88.07 12/11/2023 09:14:49 -69.11,-143.47 88.00 71.36 68
12 12/13/2023 23:51:39 -69.93, -1.80 86.99 12/13/2023 23:52:06 -69.90, -1.78 87.02 3.23 27
13 12/14/2023 00:42:22 69.77, 165.74 92.86 12/14/2023 00:41:33 69.78, 165.71 92.87 1.72 49

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 12/1/2023
SNOs_Map_NOAA-21_LANDSAT-9_20231201.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 12/01/2023 in txt file.

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