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 70.04, 62.49 48.05 07/12/2023 07:35:05 70.01, 62.48 48.02 2.85 40
2 07/12/2023 08:25:06 -69.89,-129.97 132.10 07/12/2023 08:24:35 -69.90,-130.05 132.09 3.10 31
3 07/14/2023 23:00:48 -70.87, 9.64 130.68 07/14/2023 23:01:56 -70.76, 11.82 130.89 80.56 68
4 07/14/2023 23:51:17 69.98, 178.36 48.38 07/14/2023 23:51:35 70.01, 178.35 48.40 3.02 18
5 07/15/2023 00:41:59 -69.88, -14.18 131.72 07/15/2023 00:41:05 -69.89, -14.17 131.70 1.59 54
6 07/17/2023 15:17:26 -70.08, 126.67 131.09 07/17/2023 15:18:38 -70.08, 126.70 131.09 1.13 72
7 07/17/2023 16:08:10 69.98, -65.86 48.82 07/17/2023 16:08:05 69.98, -65.81 48.81 2.18 5
8 07/17/2023 16:58:50 -69.77, 101.76 131.40 07/17/2023 16:57:36 -69.81, 101.60 131.34 7.98 74
9 07/20/2023 07:34:18 -70.03,-117.47 130.66 07/20/2023 07:35:08 -70.04,-117.48 130.66 1.28 50
10 07/20/2023 08:25:01 69.93, 49.99 49.25 07/20/2023 08:24:34 69.93, 50.01 49.25 0.96 27
11 07/20/2023 09:15:26 -68.92,-141.26 131.80 07/20/2023 09:14:19 -69.00,-143.61 131.62 94.15 67
12 07/22/2023 23:51:09 -69.98, -1.63 130.19 07/22/2023 23:51:37 -69.97, -1.68 130.20 2.48 28
13 07/23/2023 00:41:53 69.89, 165.83 49.73 07/23/2023 00:41:04 69.86, 165.80 49.71 3.14 49

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/10/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230710.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