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: 5/7/2023
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 05/09/2023 07:34:36 70.10, 62.45 52.71 05/09/2023 07:35:08 70.09, 62.47 52.69 1.74 32
2 05/09/2023 08:25:17 -69.97,-130.02 127.44 05/09/2023 08:24:38 -69.97,-130.05 127.43 1.36 39
3 05/11/2023 23:00:53 -70.51, 10.26 127.56 05/11/2023 23:02:04 -70.44, 11.21 127.66 36.27 71
4 05/11/2023 23:51:31 70.08, 178.25 51.99 05/11/2023 23:51:36 70.06, 178.31 51.96 3.07 5
5 05/12/2023 00:42:12 -69.94, -14.22 128.17 05/12/2023 00:41:06 -69.95, -14.21 128.16 0.89 66
6 05/14/2023 15:17:42 -70.13, 126.62 128.62 05/14/2023 15:18:38 -70.10, 126.61 128.65 2.90 56
7 05/14/2023 16:08:26 70.01, -65.89 51.26 05/14/2023 16:08:05 69.99, -65.90 51.24 1.91 21
8 05/14/2023 16:58:55 -69.23, 102.56 129.55 05/14/2023 16:57:46 -69.28, 100.76 129.46 71.05 69
9 05/17/2023 07:34:37 -70.07,-117.53 129.30 05/17/2023 07:35:06 -70.07,-117.56 129.31 1.45 29
10 05/17/2023 08:25:21 69.96, 49.96 50.57 05/17/2023 08:24:33 69.96, 49.92 50.58 1.39 48
11 05/19/2023 23:00:51 70.17,-169.23 50.23 05/19/2023 23:02:03 70.16,-169.19 50.21 2.18 72
12 05/19/2023 23:51:32 -70.03, -1.69 129.93 05/19/2023 23:51:33 -70.06, -1.70 129.90 3.54 1
13 05/20/2023 00:42:14 69.81, 165.95 49.84 05/20/2023 00:41:02 69.83, 165.63 49.87 12.46 72

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/7/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230507.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 05/07/2023 in txt file.

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