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: 7/3/2023
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 07/04/2023 07:34:29 -70.02,-117.49 132.88 07/04/2023 07:35:02 -70.01,-117.53 132.90 2.17 33
2 07/04/2023 08:25:13 69.91, 49.98 47.01 07/04/2023 08:24:29 69.91, 49.97 47.01 0.49 44
3 07/06/2023 23:00:48 70.51,-169.80 47.89 07/06/2023 23:01:58 70.40,-168.73 47.73 41.70 70
4 07/06/2023 23:51:22 -69.99, -1.67 132.66 07/06/2023 23:51:33 -70.01, -1.65 132.64 2.37 11
5 07/07/2023 00:42:06 69.88, 165.80 47.24 07/07/2023 00:41:00 69.91, 165.85 47.27 3.36 66
6 07/09/2023 15:17:33 70.07, -53.33 47.73 07/09/2023 15:18:35 70.05, -53.35 47.70 2.28 62
7 07/09/2023 16:08:15 -69.97, 114.14 132.38 07/09/2023 16:08:05 -69.94, 114.13 132.40 2.89 10
8 07/09/2023 16:58:50 69.39, -77.70 47.02 07/09/2023 16:57:40 69.39, -78.98 47.09 50.04 70
9 07/12/2023 07:34:24 70.00, 62.55 48.01 07/12/2023 07:35:05 70.01, 62.47 48.01 3.18 41
10 07/12/2023 08:25:06 -69.90,-129.98 132.10 07/12/2023 08:24:35 -69.91,-130.04 132.08 2.68 31
11 07/14/2023 23:00:49 -70.92, 9.55 130.63 07/14/2023 23:01:56 -70.77, 11.84 130.87 85.12 67
12 07/14/2023 23:51:17 69.99, 178.34 48.39 07/14/2023 23:51:35 70.01, 178.35 48.41 2.27 18
13 07/15/2023 00:41:59 -69.88, -14.18 131.72 07/15/2023 00:41:05 -69.91, -14.16 131.69 2.86 54

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/3/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230703.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 07/03/2023 in txt file.

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