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: 4/25/2023
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 04/27/2023 21:10:06 -70.45, 38.96 123.60 04/27/2023 21:10:58 -70.43, 39.01 123.63 2.93 52
2 04/27/2023 22:00:50 70.33,-153.55 56.28 04/27/2023 22:00:25 70.32,-153.49 56.27 2.55 25
3 04/27/2023 22:51:16 -69.40, 15.15 124.69 04/27/2023 22:50:09 -69.44, 12.91 124.61 87.77 67
4 04/30/2023 13:26:57 -70.40, 154.80 124.48 04/30/2023 13:27:25 -70.38, 154.83 124.51 3.25 28
5 04/30/2023 14:17:41 70.30, -37.72 55.40 04/30/2023 14:16:52 70.27, -37.68 55.38 3.16 49
6 05/03/2023 04:53:08 70.58, 102.99 54.91 05/03/2023 04:54:20 70.51, 103.27 54.82 12.93 72
7 05/03/2023 05:43:47 -70.32, -89.29 125.37 05/03/2023 05:43:51 -70.34, -89.34 125.35 2.71 4
8 05/03/2023 06:34:31 70.22, 78.18 54.51 05/03/2023 06:33:18 70.23, 78.15 54.53 1.93 73
9 05/05/2023 21:09:55 70.40,-140.96 53.95 05/05/2023 21:10:45 70.43,-140.96 53.97 2.68 50
10 05/05/2023 22:00:37 -70.30, 26.52 126.17 05/05/2023 22:00:15 -70.32, 26.52 126.15 1.61 22
11 05/05/2023 22:51:04 69.30,-164.69 52.80 05/05/2023 22:49:58 69.32,-167.21 52.87 99.33 66
12 05/08/2023 13:26:45 70.34, -25.08 53.15 05/08/2023 13:27:10 70.36, -25.16 53.16 3.26 25
13 05/08/2023 14:17:27 -70.24, 142.39 126.97 05/08/2023 14:16:40 -70.25, 142.32 126.96 3.03 47

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/25/2023
SNOs_Map_NPP_LANDSAT-9_20230426.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 04/25/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9