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: 11/10/2023
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 11/11/2023 23:51:18 -69.93, -1.71 92.62 11/11/2023 23:52:12 -69.94, -1.75 92.61 2.41 54
2 11/12/2023 00:42:02 69.81, 165.77 87.28 11/12/2023 00:41:39 69.84, 165.75 87.30 3.02 23
3 11/12/2023 01:32:30 -68.98, -25.71 93.56 11/12/2023 01:31:22 -69.01, -27.72 93.53 80.17 68
4 11/14/2023 15:17:51 70.91, -54.82 89.08 11/14/2023 15:18:57 70.79, -52.26 88.95 94.52 66
5 11/14/2023 16:08:16 -69.92, 114.07 91.92 11/14/2023 16:08:41 -69.91, 114.09 91.93 0.88 25
6 11/14/2023 16:59:00 69.81, -78.46 87.98 11/14/2023 16:58:08 69.80, -78.41 87.98 1.66 52
7 11/17/2023 07:34:31 69.97, 62.43 88.80 11/17/2023 07:35:39 69.99, 62.46 88.83 3.09 68
8 11/17/2023 08:25:13 -69.86,-130.09 91.30 11/17/2023 08:25:09 -69.89,-130.06 91.28 2.81 4
9 11/17/2023 09:15:52 69.49, 37.76 88.34 11/17/2023 09:14:40 69.55, 37.13 88.40 25.50 72
10 11/19/2023 23:51:27 69.93, 178.25 89.40 11/19/2023 23:52:06 69.92, 178.25 89.39 1.38 39
11 11/20/2023 00:42:09 -69.82, -14.27 90.70 11/20/2023 00:41:36 -69.81, -14.27 90.72 1.28 33
12 11/22/2023 15:17:49 -70.48, 125.85 89.46 11/22/2023 15:18:59 -70.35, 127.11 89.60 49.22 70
13 11/22/2023 16:08:23 69.86, -65.88 89.92 11/22/2023 16:08:33 69.85, -65.95 89.91 2.96 10
14 11/22/2023 16:59:05 -69.75, 101.60 90.19 11/22/2023 16:58:03 -69.75, 101.54 90.19 2.57 62

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 11/10/2023
SNOs_Map_NOAA-21_LANDSAT-9_20231110.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 11/10/2023 in txt file.

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