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: 7/19/2023
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 07/22/2023 05:43:11 -70.30, -89.34 130.03 07/22/2023 05:43:47 -70.30, -89.27 130.04 2.44 36
2 07/22/2023 06:33:55 70.18, 78.16 49.85 07/22/2023 06:33:15 70.15, 78.15 49.83 2.95 40
3 07/24/2023 21:09:30 70.73,-141.58 50.97 07/24/2023 21:10:40 70.63,-140.53 50.82 40.20 70
4 07/24/2023 22:00:04 -70.23, 26.54 129.56 07/24/2023 22:00:15 -70.25, 26.53 129.54 1.86 11
5 07/24/2023 22:50:49 70.16,-166.05 50.38 07/24/2023 22:49:42 70.14,-165.97 50.37 3.28 67
6 07/27/2023 13:26:17 70.30, -25.13 51.10 07/27/2023 13:27:13 70.32, -25.10 51.12 2.81 56
7 07/27/2023 14:16:59 -70.21, 142.32 128.98 07/27/2023 14:16:43 -70.21, 142.38 128.99 1.98 16
8 07/27/2023 15:07:30 69.40, -49.17 50.18 07/27/2023 15:06:22 69.44, -51.05 50.30 73.65 68
9 07/30/2023 05:43:11 70.24, 90.72 51.67 07/30/2023 05:43:41 70.26, 90.70 51.68 1.83 30
10 07/30/2023 06:33:53 -70.16,-101.82 128.42 07/30/2023 06:33:11 -70.15,-101.82 128.42 0.43 42
11 08/01/2023 21:09:27 -70.62, 38.58 127.28 08/01/2023 21:10:38 -70.50, 39.31 127.45 30.12 71
12 08/01/2023 22:00:05 70.20,-153.44 52.28 08/01/2023 22:00:08 70.22,-153.45 52.30 3.04 3
13 08/01/2023 22:50:47 -70.10, 14.02 127.81 08/01/2023 22:49:38 -70.12, 14.03 127.79 1.52 69

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/19/2023
SNOs_Map_NPP_LANDSAT-9_20230720.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 07/19/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9