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: 12/18/2023
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 12/19/2023 07:34:48 69.95, 62.38 93.28 12/19/2023 07:35:51 69.98, 62.39 93.30 2.99 63
2 12/19/2023 08:25:30 -69.86,-130.17 86.82 12/19/2023 08:25:21 -69.87,-130.14 86.81 1.28 9
3 12/19/2023 09:16:06 69.32, 37.93 92.64 12/19/2023 09:14:55 69.38, 36.84 92.71 43.21 71
4 12/21/2023 23:51:42 69.93, 178.18 93.30 12/21/2023 23:52:20 69.94, 178.21 93.30 1.61 38
5 12/22/2023 00:42:24 -69.84, -14.36 86.80 12/22/2023 00:41:50 -69.83, -14.31 86.81 2.11 34
6 12/24/2023 15:18:04 -70.61, 125.59 86.03 12/24/2023 15:19:13 -70.53, 127.30 86.15 63.64 69
7 12/24/2023 16:08:36 69.87, -65.94 93.21 12/24/2023 16:08:50 69.87, -66.00 93.21 2.40 14
8 12/24/2023 16:59:18 -69.77, 101.51 86.89 12/24/2023 16:58:20 -69.77, 101.48 86.89 1.34 58
9 12/27/2023 07:34:47 -69.97,-117.64 86.76 12/27/2023 07:35:51 -69.99,-117.60 86.75 2.85 64
10 12/27/2023 08:25:31 69.86, 49.83 93.13 12/27/2023 08:25:18 69.88, 49.89 93.15 2.99 13
11 12/27/2023 09:16:06 -69.40,-142.17 87.35 12/27/2023 09:14:54 -69.45,-143.07 87.28 35.58 72
12 12/29/2023 23:51:41 -69.93, -1.80 86.93 12/29/2023 23:52:20 -69.92, -1.82 86.95 1.15 39
13 12/30/2023 00:42:25 69.82, 165.68 92.96 12/30/2023 00:41:47 69.80, 165.67 92.94 1.70 38

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 12/18/2023
SNOs_Map_NOAA-21_LANDSAT-9_20231218.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 12/18/2023 in txt file.

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