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: 7/10/2023
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 07/12/2023 07:34:25 70.05, 62.48 48.06 07/12/2023 07:35:04 70.06, 62.54 48.06 2.76 39
2 07/12/2023 08:25:06 -69.90,-129.99 132.09 07/12/2023 08:24:35 -69.89,-130.06 132.10 3.36 31
3 07/14/2023 23:00:48 -70.88, 9.62 130.67 07/14/2023 23:01:55 -70.81, 11.89 130.84 83.06 67
4 07/14/2023 23:51:17 69.99, 178.35 48.39 07/14/2023 23:51:35 70.00, 178.34 48.40 1.20 18
5 07/15/2023 00:41:59 -69.89, -14.19 131.71 07/15/2023 00:41:05 -69.89, -14.18 131.71 0.61 54
6 07/17/2023 15:17:26 -70.08, 126.66 131.08 07/17/2023 15:18:38 -70.08, 126.69 131.10 1.31 72
7 07/17/2023 16:08:10 69.98, -65.87 48.82 07/17/2023 16:08:05 69.97, -65.81 48.81 2.46 5
8 07/17/2023 16:58:49 -69.72, 101.83 131.45 07/17/2023 16:57:37 -69.75, 101.52 131.39 12.61 72
9 07/20/2023 07:34:18 -70.03,-117.48 130.66 07/20/2023 07:35:08 -70.04,-117.48 130.66 0.86 50
10 07/20/2023 08:25:02 69.93, 49.98 49.25 07/20/2023 08:24:35 69.93, 50.01 49.25 0.99 27
11 07/20/2023 09:15:27 -68.93,-141.26 131.80 07/20/2023 09:14:20 -69.00,-143.61 131.62 94.05 67
12 07/22/2023 23:51:09 -69.98, -1.62 130.19 07/22/2023 23:51:37 -69.98, -1.68 130.19 2.17 28
13 07/23/2023 00:41:53 69.88, 165.83 49.72 07/23/2023 00:41:04 69.87, 165.81 49.71 2.06 49

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/10/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230711.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 07/10/2023 in txt file.

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