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: 9/25/2023
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 21:59:28 -70.35, 26.35 108.34 09/26/2023 22:00:40 -70.28, 26.57 108.41 10.81 72
2 09/26/2023 22:50:10 70.14,-166.02 71.46 09/26/2023 22:50:08 70.12,-166.02 71.45 1.43 2
3 09/26/2023 23:40:51 -69.99, 1.53 108.68 09/26/2023 23:39:38 -70.01, 1.46 108.65 3.61 73
4 09/29/2023 14:16:17 -70.21, 142.34 107.44 09/29/2023 14:17:07 -70.22, 142.38 107.43 1.89 50
5 09/29/2023 15:07:01 70.11, -50.19 72.48 09/29/2023 15:06:34 70.11, -50.14 72.48 2.22 27
6 09/29/2023 15:57:26 -69.11, 118.58 108.52 09/29/2023 15:56:19 -69.18, 116.22 108.44 93.54 67
7 10/02/2023 05:42:43 71.18, 89.22 74.58 10/02/2023 05:43:48 71.10, 91.97 74.48 99.25 65
8 10/02/2023 06:33:08 -70.19,-101.85 106.42 10/02/2023 06:33:33 -70.17,-101.80 106.44 3.11 25
9 10/02/2023 07:23:51 70.04, 65.69 73.44 10/02/2023 07:23:00 70.06, 65.68 73.46 1.90 51
10 10/04/2023 21:59:16 70.23,-153.45 74.65 10/04/2023 22:00:28 70.23,-153.44 74.64 0.63 72
11 10/04/2023 22:49:58 -70.13, 14.02 105.45 10/04/2023 22:49:58 -70.13, 14.04 105.46 1.03 0
12 10/04/2023 23:40:39 69.88,-178.28 74.31 10/04/2023 23:39:26 69.95,-178.56 74.39 13.63 73
13 10/07/2023 14:16:05 70.19, -37.60 75.63 10/07/2023 14:16:51 70.19, -37.59 75.63 0.59 46
14 10/07/2023 15:06:47 -70.09, 129.88 104.47 10/07/2023 15:06:21 -70.09, 129.90 104.46 0.93 26

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/25/2023
SNOs_Map_NPP_LANDSAT-9_20230925.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 09/25/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9