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: 12/15/2023
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 12/16/2023 15:18:03 70.53, -54.29 93.78 12/16/2023 15:19:12 70.46, -52.79 93.69 56.02 69
2 12/16/2023 16:08:35 -69.91, 113.99 86.86 12/16/2023 16:08:50 -69.91, 114.05 86.86 2.18 15
3 12/16/2023 16:59:18 69.74, -78.45 92.98 12/16/2023 16:58:18 69.75, -78.53 92.99 3.15 60
4 12/19/2023 07:34:48 69.97, 62.36 93.30 12/19/2023 07:35:51 69.98, 62.38 93.30 1.36 63
5 12/19/2023 08:25:30 -69.87,-130.18 86.81 12/19/2023 08:25:21 -69.87,-130.14 86.81 1.81 9
6 12/19/2023 09:16:06 69.34, 37.91 92.65 12/19/2023 09:14:55 69.38, 36.84 92.71 42.35 71
7 12/21/2023 23:51:43 69.94, 178.17 93.30 12/21/2023 23:52:22 69.91, 178.16 93.27 3.18 39
8 12/22/2023 00:42:24 -69.79, -14.29 86.85 12/22/2023 00:41:52 -69.81, -14.35 86.84 2.93 32
9 12/24/2023 15:18:05 -70.65, 125.52 85.98 12/24/2023 15:19:14 -70.54, 127.30 86.14 67.29 69
10 12/24/2023 16:08:36 69.86, -65.94 93.21 12/24/2023 16:08:51 69.88, -66.00 93.22 2.79 15
11 12/24/2023 16:59:18 -69.77, 101.52 86.90 12/24/2023 16:58:21 -69.78, 101.49 86.89 1.56 57
12 12/27/2023 07:34:47 -69.96,-117.62 86.78 12/27/2023 07:35:54 -69.94,-117.68 86.80 3.21 67
13 12/27/2023 08:25:31 69.85, 49.85 93.12 12/27/2023 08:25:20 69.88, 49.88 93.15 3.40 11
14 12/27/2023 09:16:07 -69.43,-142.22 87.32 12/27/2023 09:14:55 -69.50,-143.00 87.23 31.51 72

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 12/15/2023
SNOs_Map_NOAA-21_LANDSAT-9_20231215.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 12/15/2023 in txt file.

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