Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NPP and LANDSAT-9 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 4/12/2023
Index Date (NPP) Time (NPP) Lat,Lon (NPP) SZA (NPP ) Date (LANDSAT-9) Time (LANDSAT-9) Lat,Lon (LANDSAT-9) SZA (LANDSAT-9 ) Distance(km) Time Diff (sec)
1 04/14/2023 12:36:45 71.05, -13.80 61.59 04/14/2023 12:37:53 70.98, -11.89 61.47 69.57 68
2 04/14/2023 13:27:14 -70.29, 154.77 119.22 04/14/2023 13:27:33 -70.31, 154.75 119.20 3.20 19
3 04/14/2023 14:17:59 70.21, -37.81 60.69 04/14/2023 14:17:00 70.21, -37.75 60.69 2.09 59
4 04/17/2023 04:53:29 70.39, 103.07 59.94 04/17/2023 04:54:30 70.38, 103.09 59.92 1.58 61
5 04/17/2023 05:44:10 -70.25, -89.39 120.22 04/17/2023 05:44:00 -70.26, -89.44 120.21 2.31 10
6 04/17/2023 06:34:45 69.65, 78.82 59.16 04/17/2023 06:33:35 69.72, 77.44 59.26 53.87 70
7 04/19/2023 21:10:25 70.36,-141.12 58.98 04/19/2023 21:10:56 70.35,-141.06 58.96 2.69 31
8 04/19/2023 22:01:06 -70.22, 26.43 121.19 04/19/2023 22:00:26 -70.23, 26.41 121.17 1.83 40
9 04/22/2023 12:36:40 -70.67, 166.86 121.61 04/22/2023 12:37:51 -70.56, 167.50 121.74 26.23 71
10 04/22/2023 13:27:19 70.29, -25.23 57.99 04/22/2023 13:27:21 70.29, -25.26 57.98 1.48 2
11 04/22/2023 14:18:01 -70.20, 142.23 122.12 04/22/2023 14:16:51 -70.18, 142.22 122.14 2.63 70
12 04/25/2023 04:53:30 -70.34, -76.84 122.84 04/25/2023 04:54:19 -70.36, -76.90 122.82 3.40 49
13 04/25/2023 05:44:14 70.23, 90.64 57.04 04/25/2023 05:43:46 70.25, 90.58 57.06 2.88 28

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/12/2023
SNOs_Map_NPP_LANDSAT-9_20230413.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 04/12/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9