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: 6/17/2023
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 06/18/2023 06:44:05 70.63, 74.23 47.22 06/18/2023 06:45:14 70.51, 75.57 47.05 51.62 69
2 06/18/2023 07:34:37 -70.02,-117.49 133.43 06/18/2023 07:34:51 -70.02,-117.51 133.44 0.66 14
3 06/18/2023 08:25:21 69.90, 49.99 46.45 06/18/2023 08:24:18 69.91, 49.99 46.47 1.42 63
4 06/20/2023 23:00:48 70.09,-169.15 46.61 06/20/2023 23:01:50 70.09,-169.15 46.61 0.55 62
5 06/20/2023 23:51:30 -69.99, -1.69 133.49 06/20/2023 23:51:20 -69.98, -1.67 133.50 1.44 10
6 06/21/2023 00:42:05 69.40, 166.49 45.90 06/21/2023 00:40:55 69.43, 165.22 45.98 49.85 70
7 06/23/2023 15:17:41 70.02, -53.28 46.56 06/23/2023 15:18:20 70.03, -53.35 46.57 3.03 39
8 06/23/2023 16:08:23 -69.93, 114.18 133.54 06/23/2023 16:07:50 -69.93, 114.13 133.54 1.95 33
9 06/26/2023 06:44:03 -70.75,-105.97 132.60 06/26/2023 06:45:12 -70.66,-104.19 132.77 66.12 69
10 06/26/2023 07:34:35 70.02, 62.50 46.63 06/26/2023 07:34:49 70.00, 62.49 46.60 2.40 14
11 06/26/2023 08:25:17 -69.92,-130.03 133.48 06/26/2023 08:24:19 -69.90,-130.02 133.50 2.55 58
12 06/28/2023 23:00:44 -70.07, 10.89 133.21 06/28/2023 23:01:51 -70.06, 10.82 133.23 2.61 67
13 06/28/2023 23:51:28 69.97, 178.35 46.69 06/28/2023 23:51:17 70.00, 178.38 46.72 3.22 11
14 06/29/2023 00:42:04 -69.55, -13.71 133.75 06/29/2023 00:40:52 -69.62, -14.51 133.64 31.78 72

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/17/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230617.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 06/17/2023 in txt file.

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