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: 7/21/2023
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 -70.31, -89.36 130.02 07/22/2023 05:43:47 -70.29, -89.29 130.05 3.40 36
2 07/22/2023 06:33:55 70.19, 78.15 49.86 07/22/2023 06:33:14 70.20, 78.21 49.87 2.73 41
3 07/24/2023 21:09:31 70.74,-141.60 50.98 07/24/2023 21:10:41 70.63,-140.54 50.82 40.91 70
4 07/24/2023 22:00:05 -70.24, 26.52 129.54 07/24/2023 22:00:16 -70.24, 26.52 129.55 0.56 11
5 07/24/2023 22:50:49 70.12,-165.98 50.34 07/24/2023 22:49:43 70.14,-165.98 50.36 2.19 66
6 07/27/2023 13:26:17 70.31, -25.14 51.12 07/27/2023 13:27:13 70.32, -25.11 51.11 1.66 56
7 07/27/2023 14:16:59 -70.23, 142.30 128.97 07/27/2023 14:16:43 -70.21, 142.36 128.99 3.35 16
8 07/27/2023 15:07:30 69.42, -49.18 50.19 07/27/2023 15:06:22 69.44, -51.06 50.30 73.28 68
9 07/30/2023 05:43:11 70.26, 90.71 51.68 07/30/2023 05:43:41 70.26, 90.70 51.68 0.25 30
10 07/30/2023 06:33:53 -70.17,-101.84 128.40 07/30/2023 06:33:11 -70.15,-101.83 128.42 2.55 42
11 08/01/2023 21:09:27 -70.64, 38.56 127.27 08/01/2023 21:10:38 -70.50, 39.30 127.45 31.64 71
12 08/01/2023 22:00:05 70.21,-153.46 52.29 08/01/2023 22:00:08 70.22,-153.45 52.30 1.54 3
13 08/01/2023 22:50:47 -70.12, 14.00 127.80 08/01/2023 22:49:38 -70.11, 14.03 127.79 0.98 69
14 08/04/2023 13:26:15 -70.28, 154.89 126.95 08/04/2023 13:27:08 -70.27, 154.87 126.97 0.87 53
15 08/04/2023 14:16:59 70.17, -37.63 52.95 08/04/2023 14:16:35 70.16, -37.64 52.94 1.12 24

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/21/2023
SNOs_Map_NPP_LANDSAT-9_20230723.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 07/21/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9