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: 6/21/2023
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 06/23/2023 15:17:42 70.07, -53.35 46.61 06/23/2023 15:18:19 70.08, -53.28 46.62 3.01 37
2 06/23/2023 16:08:23 -69.93, 114.19 133.54 06/23/2023 16:07:50 -69.92, 114.12 133.54 2.56 33
3 06/26/2023 06:44:03 -70.75,-105.96 132.61 06/26/2023 06:45:12 -70.65,-104.20 132.78 65.58 69
4 06/26/2023 07:34:35 70.01, 62.51 46.62 06/26/2023 07:34:49 69.99, 62.48 46.60 2.50 14
5 06/26/2023 08:25:17 -69.92,-130.03 133.48 06/26/2023 08:24:19 -69.89,-130.03 133.51 3.45 58
6 06/28/2023 23:00:44 -70.12, 10.81 133.16 06/28/2023 23:01:49 -70.10, 10.88 133.19 3.40 65
7 06/28/2023 23:51:27 69.96, 178.36 46.68 06/28/2023 23:51:16 69.99, 178.37 46.71 2.74 11
8 06/29/2023 00:42:03 -69.55, -13.71 133.75 06/29/2023 00:40:51 -69.61, -14.52 133.65 32.44 72
9 07/01/2023 15:17:37 -70.07, 126.66 133.04 07/01/2023 15:18:17 -70.07, 126.73 133.05 2.96 40
10 07/01/2023 16:08:20 69.92, -65.80 46.80 07/01/2023 16:07:45 69.90, -65.86 46.79 3.08 35
11 07/04/2023 06:43:58 70.66, 74.18 47.80 07/04/2023 06:45:07 70.56, 75.70 47.62 57.48 69
12 07/04/2023 07:34:30 -70.03,-117.51 132.87 07/04/2023 07:34:45 -70.02,-117.45 132.89 2.69 15
13 07/04/2023 08:25:13 69.88, 50.03 46.97 07/04/2023 08:24:12 69.90, 50.03 47.00 1.99 61

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/21/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230621.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 06/21/2023 in txt file.

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