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: 5/10/2023
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 05/11/2023 23:00:54 -70.54, 10.22 127.53 05/11/2023 23:02:05 -70.40, 11.15 127.70 38.31 71
2 05/11/2023 23:51:31 70.05, 178.30 51.96 05/11/2023 23:51:37 70.02, 178.26 51.93 2.90 6
3 05/12/2023 00:42:13 -69.97, -14.26 128.14 05/12/2023 00:41:06 -69.96, -14.19 128.14 2.89 67
4 05/14/2023 15:17:42 -70.11, 126.66 128.64 05/14/2023 15:18:38 -70.11, 126.62 128.64 1.77 56
5 05/14/2023 16:08:26 69.98, -65.84 51.23 05/14/2023 16:08:05 70.01, -65.88 51.25 3.30 21
6 05/14/2023 16:58:55 -69.21, 102.60 129.58 05/14/2023 16:57:47 -69.23, 100.70 129.51 74.82 68
7 05/17/2023 07:34:38 -70.10,-117.57 129.27 05/17/2023 07:35:05 -70.12,-117.49 129.26 3.43 27
8 05/17/2023 08:25:22 69.98, 49.92 50.60 05/17/2023 08:24:33 69.95, 49.92 50.58 3.01 49
9 05/19/2023 23:00:50 70.15,-169.19 50.20 05/19/2023 23:02:02 70.14,-169.21 50.19 1.20 72
10 05/19/2023 23:51:32 -70.06, -1.74 129.90 05/19/2023 23:51:32 -70.03, -1.73 129.93 2.89 0
11 05/20/2023 00:42:13 69.78, 165.99 49.81 05/20/2023 00:41:00 69.86, 165.68 49.90 14.95 73
12 05/22/2023 15:17:45 70.12, -53.38 49.63 05/22/2023 15:18:28 70.12, -53.35 49.63 1.32 43
13 05/22/2023 16:08:27 -70.02, 114.08 130.48 05/22/2023 16:07:58 -70.02, 114.13 130.49 2.36 29

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/10/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230511.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 05/10/2023 in txt file.

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