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: 4/10/2023
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 04/11/2023 21:10:19 -70.37, 38.87 118.16 04/11/2023 21:11:06 -70.36, 38.93 118.18 2.38 47
2 04/11/2023 22:01:03 70.24,-153.63 61.70 04/11/2023 22:00:33 70.26,-153.57 61.71 2.49 30
3 04/14/2023 12:36:46 71.09, -13.86 61.63 04/14/2023 12:37:53 71.00, -11.86 61.49 73.09 67
4 04/14/2023 13:27:15 -70.32, 154.72 119.19 04/14/2023 13:27:33 -70.34, 154.78 119.18 3.09 18
5 04/14/2023 14:17:59 70.20, -37.78 60.68 04/14/2023 14:17:01 70.18, -37.80 60.66 2.58 58
6 04/17/2023 04:53:28 70.37, 103.09 59.93 04/17/2023 04:54:29 70.40, 103.12 59.94 2.80 61
7 04/17/2023 05:44:10 -70.28, -89.45 120.18 04/17/2023 05:43:59 -70.29, -89.41 120.18 1.71 11
8 04/17/2023 06:34:44 69.64, 78.84 59.14 04/17/2023 06:33:35 69.68, 77.39 59.22 56.24 69
9 04/19/2023 21:10:24 70.35,-141.10 58.97 04/19/2023 21:10:55 70.37,-141.03 58.98 2.97 31
10 04/19/2023 22:01:06 -70.26, 26.37 121.15 04/19/2023 22:00:25 -70.26, 26.44 121.15 2.89 41
11 04/22/2023 12:36:40 -70.66, 166.88 121.62 04/22/2023 12:37:51 -70.58, 167.53 121.72 25.45 71
12 04/22/2023 13:27:19 70.29, -25.22 57.99 04/22/2023 13:27:21 70.31, -25.23 58.00 2.18 2
13 04/22/2023 14:18:01 -70.19, 142.25 122.13 04/22/2023 14:16:51 -70.20, 142.25 122.12 1.08 70

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/10/2023
SNOs_Map_NPP_LANDSAT-9_20230410.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 04/10/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9