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: 8/22/2023
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 08/23/2023 05:43:02 -70.25, -89.30 121.32 08/23/2023 05:44:03 -70.26, -89.34 121.31 2.44 61
2 08/23/2023 06:33:47 70.18, 78.11 58.63 08/23/2023 06:33:30 70.17, 78.16 58.61 2.70 17
3 08/23/2023 07:24:18 -69.51,-113.58 122.06 08/23/2023 07:23:08 -69.61,-114.98 121.91 55.28 70
4 08/25/2023 21:59:55 -70.20, 26.53 120.45 08/25/2023 22:00:35 -70.22, 26.47 120.44 2.84 40
5 08/25/2023 22:50:40 70.14,-166.07 59.50 08/25/2023 22:50:02 70.12,-166.03 59.48 3.11 38
6 08/28/2023 13:26:19 70.95, -26.21 61.25 08/28/2023 13:27:27 70.81, -24.41 61.05 67.64 68
7 08/28/2023 14:16:49 -70.22, 142.27 119.50 08/28/2023 14:17:06 -70.21, 142.33 119.52 2.93 17
8 08/28/2023 15:07:33 70.12, -50.25 60.40 08/28/2023 15:06:33 70.10, -50.18 60.39 3.35 60
9 08/31/2023 05:42:58 70.25, 90.69 61.46 08/31/2023 05:44:06 70.27, 90.67 61.48 3.01 68
10 08/31/2023 06:33:40 -70.15,-101.84 118.63 08/31/2023 06:33:36 -70.17,-101.85 118.61 2.30 4
11 08/31/2023 07:24:19 69.78, 66.03 61.00 08/31/2023 07:23:07 69.84, 65.33 61.09 27.57 72
12 09/02/2023 21:59:51 70.23,-153.51 62.41 09/02/2023 22:00:36 70.25,-153.47 62.43 2.97 45
13 09/02/2023 22:50:33 -70.13, 13.96 117.68 09/02/2023 22:50:06 -70.15, 14.01 117.66 3.33 27

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 8/22/2023
SNOs_Map_NPP_LANDSAT-9_20230822.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 08/22/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9