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: 5/15/2023
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 05/17/2023 07:34:37 -70.06,-117.51 129.31 05/17/2023 07:35:06 -70.06,-117.58 129.32 2.39 29
2 05/17/2023 08:25:21 69.94, 49.98 50.56 05/17/2023 08:24:33 69.96, 49.92 50.58 3.17 48
3 05/19/2023 23:00:52 70.20,-169.27 50.26 05/19/2023 23:02:03 70.17,-169.17 50.22 4.97 71
4 05/19/2023 23:51:33 -70.06, -1.75 129.90 05/19/2023 23:51:33 -70.06, -1.70 129.91 1.75 0
5 05/20/2023 00:42:14 69.78, 165.99 49.81 05/20/2023 00:41:02 69.84, 165.64 49.88 14.82 72
6 05/22/2023 15:17:45 70.10, -53.36 49.61 05/22/2023 15:18:30 70.08, -53.42 49.58 3.25 45
7 05/22/2023 16:08:27 -70.01, 114.09 130.49 05/22/2023 16:07:59 -70.02, 114.14 130.48 2.23 28
8 05/25/2023 06:44:10 -70.91,-106.20 130.05 05/25/2023 06:45:18 -70.79,-104.14 130.23 76.40 68
9 05/25/2023 07:34:40 70.06, 62.46 49.07 05/25/2023 07:34:56 70.07, 62.46 49.07 0.95 16
10 05/25/2023 08:25:22 -69.97,-130.08 131.04 05/25/2023 08:24:26 -69.97,-130.06 131.04 1.19 56
11 05/27/2023 23:00:51 -70.15, 10.79 131.30 05/27/2023 23:01:55 -70.15, 10.82 131.30 1.31 64
12 05/27/2023 23:51:35 70.03, 178.27 48.58 05/27/2023 23:51:22 70.04, 178.30 48.58 1.11 13
13 05/28/2023 00:42:09 -69.52, -13.65 131.96 05/28/2023 00:40:58 -69.60, -14.67 131.85 40.84 71

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/15/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230515.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 05/15/2023 in txt file.

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