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: 3/20/2023
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 1.55 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 2.49 19
3 03/21/2023 15:08:05 69.30, -49.13 68.95 03/21/2023 15:06:58 69.33, -51.33 69.06 86.53 67
4 03/24/2023 05:43:52 70.28, 90.55 68.93 03/24/2023 05:44:15 70.26, 90.55 68.90 2.38 23
5 03/24/2023 06:34:33 -70.14,-101.91 111.23 03/24/2023 06:33:45 -70.15,-101.97 111.22 2.31 48
6 03/26/2023 21:10:05 -70.33, 38.93 112.07 03/26/2023 21:11:15 -70.32, 38.89 112.08 1.80 70
7 03/26/2023 22:00:49 70.21,-153.57 67.80 03/26/2023 22:00:42 70.21,-153.63 67.80 2.24 7
8 03/26/2023 22:51:27 -69.91, 14.21 112.53 03/26/2023 22:50:14 -69.99, 13.70 112.42 21.63 73
9 03/29/2023 13:27:03 -70.32, 154.72 113.13 03/29/2023 13:27:41 -70.30, 154.74 113.16 2.35 38
10 03/29/2023 14:17:47 70.20, -37.79 66.74 03/29/2023 14:17:08 70.18, -37.78 66.72 1.83 39
11 04/01/2023 04:53:22 70.62, 102.68 66.16 04/01/2023 04:54:33 70.50, 103.30 66.01 26.38 71
12 04/01/2023 05:43:59 -70.27, -89.43 114.23 04/01/2023 05:44:05 -70.29, -89.38 114.21 3.33 6
13 04/01/2023 06:34:43 70.15, 78.06 65.64 04/01/2023 06:33:32 70.17, 78.10 65.67 3.00 71

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/20/2023
SNOs_Map_NPP_LANDSAT-9_20230320.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 03/20/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9