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: 5/28/2023
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 05/30/2023 15:17:46 -70.11, 126.61 131.75 05/30/2023 15:18:30 -70.11, 126.60 131.76 0.99 44
2 05/30/2023 16:08:30 69.99, -65.90 48.12 05/30/2023 16:07:57 70.00, -65.90 48.13 1.22 33
3 06/02/2023 06:44:10 70.81, 73.95 48.62 06/02/2023 06:45:18 70.75, 75.78 48.50 67.56 68
4 06/02/2023 07:34:40 -70.09,-117.59 132.14 06/02/2023 07:34:58 -70.09,-117.55 132.15 1.75 18
5 06/02/2023 08:25:24 69.97, 49.89 47.73 06/02/2023 08:24:25 69.98, 49.95 47.75 2.34 59
6 06/04/2023 23:00:53 70.17,-169.26 47.62 06/04/2023 23:01:57 70.16,-169.20 47.61 2.09 64
7 06/04/2023 23:51:34 -70.02, -1.72 132.54 06/04/2023 23:51:28 -70.00, -1.80 132.56 3.55 6
8 06/05/2023 00:42:11 69.53, 166.31 46.96 06/05/2023 00:41:00 69.62, 165.31 47.07 39.66 71
9 06/07/2023 15:17:47 70.11, -53.40 47.28 06/07/2023 15:18:26 70.11, -53.41 47.28 0.44 39
10 06/07/2023 16:08:29 -70.01, 114.06 132.82 06/07/2023 16:07:56 -70.01, 114.08 132.83 0.89 33
11 06/10/2023 06:44:09 -70.79,-106.02 132.23 06/10/2023 06:45:18 -70.70,-104.31 132.38 63.42 69
12 06/10/2023 07:34:42 70.10, 62.37 47.05 06/10/2023 07:34:54 70.09, 62.44 47.03 3.19 12
13 06/10/2023 08:25:23 -69.95,-130.08 133.11 06/10/2023 08:24:25 -69.93,-130.14 133.12 3.13 58

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/28/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230528.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 05/28/2023 in txt file.

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