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: 9/18/2023
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 09/18/2023 21:59:37 70.22,-153.49 68.44 09/18/2023 22:00:45 70.22,-153.54 68.43 2.14 68
2 09/18/2023 22:50:19 -70.13, 13.98 111.65 09/18/2023 22:50:15 -70.11, 13.93 111.67 3.19 4
3 09/18/2023 23:40:58 69.76,-178.15 67.99 09/18/2023 23:39:46 69.78,-178.88 68.03 28.09 72
4 09/21/2023 14:16:29 70.21, -37.69 69.46 09/21/2023 14:17:13 70.23, -37.64 69.48 2.87 44
5 09/21/2023 15:07:11 -70.12, 129.78 110.63 09/21/2023 15:06:43 -70.12, 129.83 110.62 2.28 28
6 09/24/2023 05:42:53 -71.20, -90.83 108.51 09/24/2023 05:43:59 -71.07, -88.12 108.66 98.40 66
7 09/24/2023 06:33:19 70.16, 78.17 70.45 09/24/2023 06:33:41 70.15, 78.13 70.44 1.75 22
8 09/24/2023 07:24:01 -70.06,-114.36 109.65 09/24/2023 07:23:11 -70.04,-114.39 109.66 2.09 50
9 09/26/2023 21:59:29 -70.37, 26.31 108.32 09/26/2023 22:00:40 -70.31, 26.61 108.39 12.87 71
10 09/26/2023 22:50:10 70.11,-165.98 71.44 09/26/2023 22:50:08 70.14,-165.99 71.47 2.97 2
11 09/26/2023 23:40:52 -70.01, 1.49 108.66 09/26/2023 23:39:38 -70.03, 1.49 108.63 2.75 74
12 09/29/2023 14:16:18 -70.22, 142.32 107.42 09/29/2023 14:17:08 -70.21, 142.36 107.44 2.43 50
13 09/29/2023 15:07:01 70.08, -50.15 72.45 09/29/2023 15:06:35 70.09, -50.16 72.46 1.67 26

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/18/2023
SNOs_Map_NPP_LANDSAT-9_20230918.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 09/18/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9