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: 12/20/2023
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 12/21/2023 23:51:42 69.92, 178.20 93.29 12/21/2023 23:52:21 69.90, 178.15 93.26 2.84 39
2 12/22/2023 00:42:24 -69.83, -14.35 86.81 12/22/2023 00:41:50 -69.84, -14.29 86.80 2.50 34
3 12/24/2023 15:18:05 -70.65, 125.52 85.98 12/24/2023 15:19:13 -70.54, 127.32 86.13 67.56 68
4 12/24/2023 16:08:37 69.91, -66.01 93.26 12/24/2023 16:08:50 69.89, -65.98 93.23 2.43 13
5 12/24/2023 16:59:18 -69.77, 101.52 86.90 12/24/2023 16:58:20 -69.78, 101.50 86.88 1.89 58
6 12/27/2023 07:34:47 -69.97,-117.63 86.76 12/27/2023 07:35:52 -69.96,-117.65 86.78 1.05 65
7 12/27/2023 08:25:31 69.86, 49.84 93.13 12/27/2023 08:25:19 69.85, 49.85 93.12 0.64 12
8 12/27/2023 09:16:06 -69.39,-142.16 87.36 12/27/2023 09:14:54 -69.47,-143.04 87.26 35.39 72
9 12/29/2023 23:51:40 -69.92, -1.79 86.94 12/29/2023 23:52:19 -69.95, -1.78 86.92 2.75 39
10 12/30/2023 00:42:24 69.81, 165.68 92.95 12/30/2023 00:41:46 69.84, 165.71 92.97 2.72 38
11 01/01/2024 15:18:01 70.46, -54.16 93.44 01/01/2024 15:19:11 70.34, -52.96 93.28 46.76 70
12 01/01/2024 16:08:34 -69.89, 114.04 87.16 01/01/2024 16:08:47 -69.91, 114.05 87.15 1.91 13
13 01/01/2024 16:59:18 69.78, -78.49 92.73 01/01/2024 16:58:14 69.79, -78.46 92.75 1.55 64

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 12/20/2023
SNOs_Map_NOAA-21_LANDSAT-9_20231220.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 12/20/2023 in txt file.

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