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: 11/13/2023
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 11/14/2023 15:17:51 70.92, -54.85 89.09 11/14/2023 15:18:57 70.79, -52.27 88.95 95.27 66
2 11/14/2023 16:08:15 -69.88, 114.12 91.96 11/14/2023 16:08:41 -69.90, 114.08 91.94 3.30 26
3 11/14/2023 16:59:00 69.82, -78.48 87.99 11/14/2023 16:58:08 69.80, -78.42 87.97 2.89 52
4 11/17/2023 07:34:31 69.97, 62.42 88.81 11/17/2023 07:35:40 69.96, 62.41 88.79 1.43 69
5 11/17/2023 08:25:13 -69.87,-130.11 91.29 11/17/2023 08:25:10 -69.85,-130.11 91.31 2.57 3
6 11/17/2023 09:15:52 69.50, 37.75 88.35 11/17/2023 09:14:40 69.58, 37.16 88.43 24.61 72
7 11/19/2023 23:51:28 69.93, 178.25 89.40 11/19/2023 23:52:08 69.93, 178.25 89.40 0.27 40
8 11/20/2023 00:42:10 -69.83, -14.28 90.70 11/20/2023 00:41:38 -69.82, -14.26 90.71 0.97 32
9 11/22/2023 15:17:50 -70.53, 125.78 89.42 11/22/2023 15:19:00 -70.41, 127.19 89.54 54.16 70
10 11/22/2023 16:08:24 69.90, -65.94 89.96 11/22/2023 16:08:34 69.92, -65.87 89.98 3.48 10
11 11/22/2023 16:59:05 -69.74, 101.61 90.20 11/22/2023 16:58:05 -69.76, 101.54 90.18 3.53 60
12 11/25/2023 07:34:36 -69.92,-117.52 89.48 11/25/2023 07:35:35 -69.93,-117.60 89.47 3.26 59
13 11/25/2023 08:25:20 69.82, 49.93 90.43 11/25/2023 08:25:02 69.82, 49.88 90.43 1.98 18
14 11/25/2023 09:15:51 -69.13,-141.75 90.26 11/25/2023 09:14:42 -69.16,-143.36 90.22 63.85 69

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 11/13/2023
SNOs_Map_NOAA-21_LANDSAT-9_20231113.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 11/13/2023 in txt file.

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