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: 8/20/2023
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 08/21/2023 07:34:02 -70.74,-118.51 121.42 08/21/2023 07:35:10 -70.61,-116.63 121.61 70.72 68
2 08/21/2023 08:24:33 69.94, 50.06 57.75 08/21/2023 08:24:48 69.92, 50.00 57.73 3.11 15
3 08/21/2023 09:15:14 -69.85,-142.50 122.33 08/21/2023 09:14:16 -69.86,-142.45 122.32 1.99 58
4 08/23/2023 23:50:44 -70.01, -1.59 121.30 08/23/2023 23:51:52 -69.99, -1.66 121.32 3.20 68
5 08/24/2023 00:41:28 69.88, 165.90 58.59 08/24/2023 00:41:19 69.89, 165.84 58.60 2.39 9
6 08/24/2023 01:32:05 -69.53, -26.27 121.76 08/24/2023 01:30:53 -69.56, -26.98 121.71 27.96 72
7 08/26/2023 16:07:41 -70.01, 114.16 120.37 08/26/2023 16:08:23 -69.99, 114.22 120.40 2.97 42
8 08/26/2023 16:58:25 69.89, -78.35 59.52 08/26/2023 16:57:50 69.89, -78.29 59.51 2.58 35
9 08/29/2023 07:34:07 70.70, 61.53 61.27 08/29/2023 07:35:15 70.56, 63.29 61.08 66.79 68
10 08/29/2023 08:24:36 -69.92,-129.94 119.53 08/29/2023 08:24:55 -69.91,-130.02 119.54 3.05 19
11 08/29/2023 09:15:20 69.80, 37.54 60.36 08/29/2023 09:14:22 69.80, 37.47 60.37 2.64 58
12 08/31/2023 23:50:51 70.04, 178.33 61.53 08/31/2023 23:51:55 70.01, 178.37 61.50 3.01 64
13 09/01/2023 00:41:32 -69.89, -14.14 118.61 09/01/2023 00:41:25 -69.91, -14.14 118.59 2.50 7
14 09/01/2023 01:32:08 69.40, 153.89 60.90 09/01/2023 01:30:57 69.47, 152.90 61.00 39.29 71

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 8/20/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230820.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 08/20/2023 in txt file.

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