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: 10/13/2023
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 10/15/2023 14:16:09 -70.63, 141.70 100.92 10/15/2023 14:17:19 -70.52, 142.75 101.04 40.83 70
2 10/15/2023 15:06:46 70.15, -50.23 78.62 10/15/2023 15:06:51 70.14, -50.16 78.60 2.88 5
3 10/15/2023 15:57:27 -70.01, 117.31 101.52 10/15/2023 15:56:21 -70.03, 117.32 101.50 2.67 66
4 10/18/2023 06:32:57 -70.16,-101.80 100.41 10/18/2023 06:33:55 -70.18,-101.87 100.39 3.37 58
5 10/18/2023 07:23:42 70.10, 65.61 79.55 10/18/2023 07:23:22 70.07, 65.63 79.52 3.00 20
6 10/18/2023 08:14:11 -69.32,-125.93 101.22 10/18/2023 08:13:02 -69.42,-127.65 101.13 68.22 69
7 10/20/2023 22:49:54 -70.18, 13.93 99.42 10/20/2023 22:50:24 -70.17, 14.01 99.43 3.09 30
8 10/20/2023 23:40:36 70.02,-178.51 80.43 10/20/2023 23:39:51 70.01,-178.58 80.42 2.96 45
9 10/23/2023 14:16:09 70.37, -37.92 81.71 10/23/2023 14:17:20 70.33, -37.51 81.67 16.24 71
10 10/23/2023 15:06:48 -70.12, 129.79 98.53 10/23/2023 15:06:52 -70.12, 129.82 98.54 1.15 4
11 10/23/2023 15:57:32 70.01, -62.73 81.37 10/23/2023 15:56:19 70.00, -62.70 81.36 1.42 73
12 10/26/2023 06:33:01 70.18, 78.15 82.44 10/26/2023 06:33:50 70.17, 78.15 82.43 1.03 49
13 10/26/2023 07:23:43 -70.08,-114.39 97.65 10/26/2023 07:23:20 -70.07,-114.37 97.67 1.93 23

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 10/13/2023
SNOs_Map_NPP_LANDSAT-9_20231013.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 10/13/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9