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: 11/18/2023
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 11/19/2023 23:51:27 69.92, 178.27 89.38 11/19/2023 23:52:14 69.94, 178.23 89.40 2.76 47
2 11/20/2023 00:42:09 -69.82, -14.27 90.71 11/20/2023 00:41:44 -69.83, -14.29 90.70 1.35 25
3 11/22/2023 15:17:58 -70.93, 125.12 89.01 11/22/2023 15:19:04 -70.83, 127.76 89.12 97.05 66
4 11/22/2023 16:08:25 69.93, -65.99 89.99 11/22/2023 16:08:46 69.90, -65.95 89.96 3.29 21
5 11/22/2023 16:59:06 -69.77, 101.56 90.16 11/22/2023 16:58:16 -69.80, 101.54 90.14 2.57 50
6 11/25/2023 07:34:38 -70.00,-117.65 89.40 11/25/2023 07:35:50 -70.01,-117.57 89.40 2.92 72
7 11/25/2023 08:25:21 69.84, 49.90 90.45 11/25/2023 08:25:18 69.84, 49.84 90.45 2.19 3
8 11/25/2023 09:16:02 -69.68,-142.55 89.70 11/25/2023 09:14:49 -69.68,-142.74 89.71 7.37 73
9 11/27/2023 23:51:34 -69.92, -1.76 88.98 11/27/2023 23:52:22 -69.92, -1.81 88.97 1.97 48
10 11/28/2023 00:42:18 69.82, 165.70 90.93 11/28/2023 00:41:49 69.81, 165.68 90.92 1.08 29
11 11/30/2023 15:18:02 70.75, -54.62 92.32 11/30/2023 15:19:09 70.68, -52.46 92.24 79.43 67
12 11/30/2023 16:08:30 -69.90, 114.03 88.54 11/30/2023 16:08:51 -69.93, 114.07 88.52 3.28 21
13 11/30/2023 16:59:14 69.80, -78.51 91.37 11/30/2023 16:58:18 69.81, -78.45 91.38 2.76 56

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 11/18/2023
SNOs_Map_NOAA-21_LANDSAT-9_20231118.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 11/18/2023 in txt file.

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