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: 9/22/2023
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 09/24/2023 05:42:53 -71.19, -90.82 108.51 09/24/2023 05:43:59 -71.09, -88.10 108.64 98.65 66
2 09/24/2023 06:33:19 70.15, 78.19 70.44 09/24/2023 06:33:41 70.17, 78.16 70.46 2.67 22
3 09/24/2023 07:24:01 -70.05,-114.35 109.65 09/24/2023 07:23:11 -70.06,-114.37 109.65 0.87 50
4 09/26/2023 21:59:29 -70.37, 26.32 108.32 09/26/2023 22:00:40 -70.33, 26.64 108.36 12.60 71
5 09/26/2023 22:50:10 70.11,-165.97 71.43 09/26/2023 22:50:09 70.11,-166.03 71.44 2.41 1
6 09/26/2023 23:40:52 -70.01, 1.50 108.66 09/26/2023 23:39:39 -70.00, 1.45 108.66 1.84 73
7 09/29/2023 14:16:17 -70.17, 142.40 107.48 09/29/2023 14:17:09 -70.19, 142.33 107.46 3.14 52
8 09/29/2023 15:07:01 70.07, -50.14 72.44 09/29/2023 15:06:36 70.07, -50.19 72.44 1.84 25
9 09/29/2023 15:57:27 -69.13, 118.55 108.50 09/29/2023 15:56:20 -69.20, 116.25 108.42 91.60 67
10 10/02/2023 06:33:07 -70.15,-101.79 106.46 10/02/2023 06:33:34 -70.17,-101.80 106.44 2.51 27
11 10/02/2023 07:23:51 70.05, 65.67 73.46 10/02/2023 07:23:01 70.06, 65.68 73.46 0.38 50
12 10/04/2023 21:59:18 70.35,-153.63 74.76 10/04/2023 22:00:29 70.28,-153.38 74.69 12.32 71
13 10/04/2023 22:49:58 -70.14, 14.01 105.44 10/04/2023 22:50:00 -70.12, 14.02 105.46 2.01 2
14 10/04/2023 23:40:40 69.94,-178.37 74.38 10/04/2023 23:39:28 69.94,-178.58 74.38 7.85 72

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/22/2023
SNOs_Map_NPP_LANDSAT-9_20230922.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 09/22/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9