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: 12/14/2023
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 12/16/2023 15:18:03 70.54, -54.31 93.80 12/16/2023 15:19:12 70.45, -52.81 93.68 56.59 69
2 12/16/2023 16:08:35 -69.92, 113.98 86.85 12/16/2023 16:08:50 -69.90, 114.04 86.87 3.08 15
3 12/16/2023 16:59:18 69.76, -78.47 92.99 12/16/2023 16:58:18 69.74, -78.54 92.98 3.03 60
4 12/19/2023 07:34:48 69.98, 62.34 93.31 12/19/2023 07:35:51 69.97, 62.37 93.29 1.51 63
5 12/19/2023 08:25:30 -69.88,-130.20 86.79 12/19/2023 08:25:21 -69.87,-130.14 86.82 2.98 9
6 12/19/2023 09:16:05 69.29, 37.97 92.61 12/19/2023 09:14:55 69.37, 36.83 92.71 45.55 70
7 12/21/2023 23:51:42 69.90, 178.24 93.26 12/21/2023 23:52:22 69.91, 178.16 93.27 3.15 40
8 12/22/2023 00:42:24 -69.80, -14.30 86.84 12/22/2023 00:41:52 -69.81, -14.35 86.84 1.91 32
9 12/24/2023 15:18:06 -70.66, 125.50 85.97 12/24/2023 15:19:14 -70.60, 127.39 86.08 70.15 68
10 12/24/2023 16:08:37 69.87, -65.96 93.22 12/24/2023 16:08:52 69.88, -66.00 93.22 1.80 15
11 12/24/2023 16:59:19 -69.78, 101.51 86.89 12/24/2023 16:58:22 -69.78, 101.50 86.88 0.81 57
12 12/27/2023 07:34:47 -69.96,-117.63 86.77 12/27/2023 07:35:54 -69.95,-117.66 86.79 1.81 67
13 12/27/2023 08:25:31 69.86, 49.84 93.13 12/27/2023 08:25:21 69.84, 49.82 93.11 2.41 10
14 12/27/2023 09:16:07 -69.44,-142.23 87.31 12/27/2023 09:14:55 -69.52,-142.98 87.21 30.56 72

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 12/14/2023
SNOs_Map_NOAA-21_LANDSAT-9_20231214.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 12/14/2023 in txt file.

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