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: 1/22/2023
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 01/24/2023 14:17:04 70.19, -37.78 89.37 01/24/2023 14:17:31 70.17, -37.77 89.35 1.66 27
2 01/24/2023 15:07:45 -70.04, 129.76 90.79 01/24/2023 15:07:01 -70.06, 129.71 90.76 3.17 44
3 01/27/2023 05:43:21 -70.54, -89.88 90.91 01/27/2023 05:44:32 -70.44, -89.16 91.05 28.90 71
4 01/27/2023 06:34:00 70.17, 78.02 88.69 01/27/2023 06:34:02 70.17, 78.10 88.69 2.94 2
5 01/27/2023 07:24:41 -70.02,-114.43 91.48 01/27/2023 07:23:33 -70.01,-114.50 91.48 2.85 68
6 01/29/2023 22:00:11 -70.21, 26.41 91.96 01/29/2023 22:01:06 -70.21, 26.39 91.97 0.97 55
7 01/29/2023 22:50:55 70.11,-166.11 87.93 01/29/2023 22:50:33 70.10,-166.12 87.93 0.38 22
8 01/29/2023 23:41:23 -69.27, 2.44 92.97 01/29/2023 23:40:15 -69.34, 0.46 92.81 78.35 68
9 02/01/2023 14:17:07 -70.21, 142.19 92.70 02/01/2023 14:17:35 -70.20, 142.25 92.72 2.66 28
10 02/01/2023 15:07:50 70.06, -50.26 87.13 02/01/2023 15:07:02 70.09, -50.27 87.17 3.43 48
11 02/04/2023 05:43:20 70.33, 90.47 86.66 02/04/2023 05:44:32 70.28, 90.62 86.60 7.87 72
12 02/04/2023 06:34:01 -70.17,-101.97 93.52 02/04/2023 06:34:02 -70.18,-101.90 93.52 2.82 1
13 02/04/2023 07:24:43 69.96, 65.65 86.26 02/04/2023 07:23:30 70.01, 65.51 86.32 7.39 73

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/22/2023
SNOs_Map_NPP_LANDSAT-9_20230122.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 01/22/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9