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: 3/21/2023
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 03/21/2023 13:26:54 70.31, -25.26 70.02 03/21/2023 13:27:47 70.32, -25.24 70.03 2.06 53
2 03/21/2023 14:17:36 -70.22, 142.19 110.08 03/21/2023 14:17:17 -70.21, 142.23 110.10 2.28 19
3 03/21/2023 15:08:05 69.30, -49.13 68.94 03/21/2023 15:06:58 69.33, -51.33 69.06 86.53 67
4 03/24/2023 05:43:52 70.28, 90.56 68.93 03/24/2023 05:44:15 70.26, 90.56 68.91 1.28 23
5 03/24/2023 06:34:33 -70.14,-101.91 111.24 03/24/2023 06:33:45 -70.15,-101.96 111.21 2.59 48
6 03/26/2023 21:10:05 -70.32, 38.94 112.07 03/26/2023 21:11:15 -70.34, 38.91 112.07 1.80 70
7 03/26/2023 22:00:49 70.20,-153.56 67.79 03/26/2023 22:00:42 70.22,-153.61 67.81 3.13 7
8 03/26/2023 22:51:27 -69.90, 14.21 112.54 03/26/2023 22:50:15 -69.95, 13.64 112.47 22.60 72
9 03/29/2023 13:27:03 -70.31, 154.73 113.14 03/29/2023 13:27:41 -70.32, 154.77 113.14 1.83 38
10 03/29/2023 14:17:47 70.19, -37.78 66.73 03/29/2023 14:17:08 70.21, -37.75 66.74 1.98 39
11 04/01/2023 04:53:22 70.61, 102.70 66.15 04/01/2023 04:54:34 70.48, 103.27 65.99 25.22 72
12 04/01/2023 05:43:59 -70.25, -89.41 114.24 04/01/2023 05:44:06 -70.27, -89.41 114.23 1.62 7
13 04/01/2023 06:34:43 70.14, 78.08 65.63 04/01/2023 06:33:33 70.15, 78.07 65.65 1.71 70
14 04/03/2023 21:10:15 70.36,-141.12 64.85 04/03/2023 21:11:01 70.34,-141.05 64.82 3.19 46
15 04/03/2023 22:00:56 -70.21, 26.43 115.33 04/03/2023 22:00:31 -70.24, 26.44 115.30 3.35 25

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/21/2023
SNOs_Map_NPP_LANDSAT-9_20230321.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 03/21/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9