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: 6/29/2023
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 06/30/2023 21:09:24 -70.79, 38.41 132.36 06/30/2023 21:10:34 -70.70, 39.54 132.50 42.72 70
2 06/30/2023 22:00:00 70.25,-153.42 47.07 06/30/2023 22:00:07 70.28,-153.44 47.10 3.30 7
3 06/30/2023 22:50:42 -70.17, 14.03 133.01 06/30/2023 22:49:37 -70.17, 14.03 133.01 0.19 65
4 07/03/2023 13:26:12 -70.36, 154.87 132.63 07/03/2023 13:27:14 -70.35, 154.88 132.64 0.53 62
5 07/03/2023 14:16:56 70.23, -37.63 47.25 07/03/2023 14:16:41 70.25, -37.62 47.27 1.92 15
6 07/03/2023 15:07:29 -69.67, 130.53 133.33 07/03/2023 15:06:19 -69.71, 129.25 133.25 49.80 70
7 07/06/2023 05:43:07 -70.29, -89.26 132.45 07/06/2023 05:43:48 -70.30, -89.32 132.44 2.69 41
8 07/06/2023 06:33:52 70.22, 78.15 47.49 07/06/2023 06:33:15 70.20, 78.18 47.47 2.75 37
9 07/08/2023 21:09:33 71.00,-141.97 48.59 07/08/2023 21:10:41 70.94,-140.12 48.46 67.37 68
10 07/08/2023 22:00:03 -70.28, 26.51 132.17 07/08/2023 22:00:21 -70.29, 26.53 132.16 1.22 18
11 07/08/2023 22:50:47 70.16,-166.00 47.72 07/08/2023 22:49:48 70.18,-165.98 47.74 2.15 59
12 07/11/2023 13:26:16 70.37, -25.19 48.26 07/11/2023 13:27:23 70.35, -25.14 48.23 2.68 67
13 07/11/2023 14:16:57 -70.22, 142.36 131.89 07/11/2023 14:16:53 -70.25, 142.35 131.86 2.98 4
14 07/11/2023 15:07:36 69.84, -49.76 47.72 07/11/2023 15:06:24 69.92, -50.48 47.83 28.75 72

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/29/2023
SNOs_Map_NPP_LANDSAT-9_20230630.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 06/29/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9