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: 9/26/2023
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 09/26/2023 21:59:29 -70.36, 26.32 108.32 09/26/2023 22:00:40 -70.33, 26.63 108.37 12.28 71
2 09/26/2023 22:50:10 70.10,-165.96 71.43 09/26/2023 22:50:09 70.11,-166.03 71.44 3.15 1
3 09/26/2023 23:40:52 -70.00, 1.50 108.66 09/26/2023 23:39:39 -70.00, 1.44 108.67 2.37 73
4 09/29/2023 14:16:18 -70.22, 142.32 107.42 09/29/2023 14:17:08 -70.23, 142.38 107.43 2.32 50
5 09/29/2023 15:07:01 70.07, -50.13 72.44 09/29/2023 15:06:36 70.06, -50.21 72.43 2.98 25
6 09/29/2023 15:57:27 -69.12, 118.56 108.51 09/29/2023 15:56:20 -69.18, 116.23 108.44 92.49 67
7 10/02/2023 06:33:07 -70.15,-101.79 106.46 10/02/2023 06:33:34 -70.14,-101.85 106.48 2.67 27
8 10/02/2023 07:23:51 70.05, 65.68 73.45 10/02/2023 07:23:01 70.02, 65.64 73.43 3.00 50
9 10/04/2023 21:59:17 70.29,-153.54 74.71 10/04/2023 22:00:28 70.28,-153.37 74.69 6.44 71
10 10/04/2023 22:49:58 -70.14, 14.01 105.44 10/04/2023 22:49:59 -70.12, 14.03 105.46 2.13 1
11 10/04/2023 23:40:40 69.93,-178.37 74.37 10/04/2023 23:39:27 69.95,-178.57 74.39 7.91 73
12 10/07/2023 14:16:06 70.19, -37.60 75.63 10/07/2023 14:16:54 70.16, -37.64 75.60 3.16 48
13 10/07/2023 15:06:48 -70.08, 129.88 104.47 10/07/2023 15:06:24 -70.06, 129.85 104.49 2.97 24

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/26/2023
SNOs_Map_NPP_LANDSAT-9_20230926.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 09/26/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9