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: 11/12/2023
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 11/14/2023 15:17:51 70.92, -54.84 89.09 11/14/2023 15:18:57 70.79, -52.26 88.95 95.23 66
2 11/14/2023 16:08:16 -69.93, 114.05 91.91 11/14/2023 16:08:41 -69.91, 114.09 91.93 2.30 25
3 11/14/2023 16:59:00 69.82, -78.47 87.99 11/14/2023 16:58:08 69.81, -78.41 87.98 2.46 52
4 11/17/2023 07:34:31 69.97, 62.43 88.80 11/17/2023 07:35:40 69.97, 62.42 88.80 0.30 69
5 11/17/2023 08:25:13 -69.87,-130.10 91.30 11/17/2023 08:25:10 -69.86,-130.10 91.31 0.85 3
6 11/17/2023 09:15:52 69.49, 37.76 88.34 11/17/2023 09:14:40 69.59, 37.17 88.43 25.04 72
7 11/19/2023 23:51:28 69.92, 178.26 89.39 11/19/2023 23:52:08 69.94, 178.27 89.41 1.79 40
8 11/20/2023 00:42:10 -69.82, -14.27 90.71 11/20/2023 00:41:38 -69.83, -14.25 90.70 1.64 32
9 11/22/2023 15:17:51 -70.57, 125.71 89.38 11/22/2023 15:19:00 -70.43, 127.21 89.52 57.85 69
10 11/22/2023 16:08:24 69.89, -65.92 89.95 11/22/2023 16:08:35 69.88, -65.93 89.94 1.30 11
11 11/22/2023 16:59:06 -69.78, 101.55 90.16 11/22/2023 16:58:05 -69.77, 101.56 90.17 0.97 61
12 11/25/2023 07:34:37 -69.96,-117.58 89.44 11/25/2023 07:35:35 -69.95,-117.58 89.45 0.94 58
13 11/25/2023 08:25:21 69.86, 49.88 90.47 11/25/2023 08:25:02 69.83, 49.90 90.44 3.07 19
14 11/25/2023 09:15:51 -69.11,-141.73 90.28 11/25/2023 09:14:42 -69.18,-143.34 90.21 64.31 69

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 11/12/2023
SNOs_Map_NOAA-21_LANDSAT-9_20231112.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 11/12/2023 in txt file.

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