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: 4/14/2023
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 04/15/2023 07:34:48 -70.07,-117.50 119.71 04/15/2023 07:35:20 -70.06,-117.55 119.72 2.17 32
2 04/15/2023 08:25:32 69.95, 49.98 60.17 04/15/2023 08:24:47 69.96, 49.95 60.17 1.24 45
3 04/17/2023 23:01:02 70.45,-169.63 59.76 04/17/2023 23:02:13 70.32,-168.92 59.60 30.47 71
4 04/17/2023 23:51:38 -70.05, -1.69 120.68 04/17/2023 23:51:46 -70.04, -1.69 120.69 1.51 8
5 04/18/2023 00:42:22 69.94, 165.79 59.20 04/18/2023 00:41:13 69.93, 165.81 59.20 0.86 69
6 04/20/2023 15:17:46 70.13, -53.35 58.50 04/20/2023 15:18:41 70.15, -53.28 58.50 3.18 55
7 04/20/2023 16:08:27 -69.99, 114.19 121.67 04/20/2023 16:08:12 -69.98, 114.12 121.68 2.85 15
8 04/20/2023 16:58:58 69.19, -77.34 57.50 04/20/2023 16:57:50 69.26, -79.21 57.62 74.11 68
9 04/23/2023 07:34:35 70.09, 62.51 57.54 04/23/2023 07:35:06 70.11, 62.56 57.55 2.80 31
10 04/23/2023 08:25:17 -70.00,-130.03 122.57 04/23/2023 08:24:36 -70.00,-129.97 122.57 2.65 41
11 04/25/2023 23:00:47 -70.58, 10.22 122.82 04/25/2023 23:01:57 -70.47, 11.34 122.97 43.03 70
12 04/25/2023 23:51:23 70.05, 178.35 56.62 04/25/2023 23:51:30 70.03, 178.34 56.60 2.85 7
13 04/26/2023 00:42:04 -69.91, -14.11 123.54 04/26/2023 00:41:00 -69.92, -14.18 123.53 2.75 64
14 04/28/2023 15:17:28 -70.13, 126.71 124.14 04/28/2023 15:18:26 -70.14, 126.76 124.14 1.94 58
15 04/28/2023 16:08:12 70.03, -65.83 55.74 04/28/2023 16:07:53 70.02, -65.76 55.74 2.52 19

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/14/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230415.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 04/14/2023 in txt file.

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