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: 1/17/2023
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 01/19/2023 05:43:16 70.42, 90.31 90.81 01/19/2023 05:44:27 70.37, 90.78 90.74 18.40 71
2 01/19/2023 06:33:55 -70.17,-101.98 89.46 01/19/2023 06:33:59 -70.15,-101.91 89.48 3.36 4
3 01/19/2023 07:24:38 70.00, 65.58 90.36 01/19/2023 07:23:27 69.99, 65.51 90.36 3.17 71
4 01/21/2023 22:00:09 70.22,-153.61 90.03 01/21/2023 22:00:55 70.21,-153.56 90.01 1.96 46
5 01/21/2023 22:50:50 -70.07, 13.94 90.14 01/21/2023 22:50:25 -70.10, 13.91 90.11 3.33 25
6 01/24/2023 13:26:33 -70.97, 153.63 89.79 01/24/2023 13:27:41 -70.87, 155.68 89.97 75.33 68
7 01/24/2023 14:17:03 70.13, -37.70 89.32 01/24/2023 14:17:19 70.16, -37.73 89.34 3.20 16
8 01/24/2023 15:07:45 -70.03, 129.77 90.80 01/24/2023 15:06:49 -70.05, 129.75 90.77 2.17 56
9 01/27/2023 05:43:15 -70.22, -89.37 91.25 01/27/2023 05:44:16 -70.24, -89.36 91.24 2.73 61
10 01/27/2023 06:33:59 70.11, 78.10 88.64 01/27/2023 06:33:43 70.13, 78.12 88.65 1.47 16
11 01/27/2023 07:24:31 -69.48,-113.64 92.04 01/27/2023 07:23:21 -69.58,-115.00 91.88 54.03 70
12 01/29/2023 22:00:10 -70.15, 26.50 92.02 01/29/2023 22:00:40 -70.17, 26.44 92.01 2.78 30
13 01/29/2023 22:50:54 70.05,-166.03 87.87 01/29/2023 22:50:07 70.05,-166.09 87.87 2.26 47

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/17/2023
SNOs_Map_NPP_LANDSAT-9_20230117.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 01/17/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9