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: 1/23/2023
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 70.18, -37.78 89.37 01/24/2023 14:17:31 70.19, -37.75 89.37 1.21 27
2 01/24/2023 15:07:46 -70.09, 129.68 90.74 01/24/2023 15:07:01 -70.07, 129.72 90.75 2.47 45
3 01/27/2023 05:43:21 -70.54, -89.87 90.91 01/27/2023 05:44:33 -70.41, -89.20 91.08 28.57 72
4 01/27/2023 06:34:00 70.16, 78.02 88.69 01/27/2023 06:34:03 70.15, 78.06 88.67 2.43 3
5 01/27/2023 07:24:41 -70.01,-114.43 91.48 01/27/2023 07:23:33 -70.04,-114.46 91.45 2.64 68
6 01/29/2023 22:00:11 -70.21, 26.42 91.96 01/29/2023 22:01:07 -70.21, 26.38 91.97 1.63 56
7 01/29/2023 22:50:55 70.10,-166.11 87.92 01/29/2023 22:50:34 70.10,-166.13 87.92 0.95 21
8 01/29/2023 23:41:24 -69.32, 2.37 92.92 01/29/2023 23:40:16 -69.33, 0.45 92.81 75.55 68
9 02/01/2023 14:17:07 -70.21, 142.20 92.70 02/01/2023 14:17:36 -70.22, 142.27 92.70 3.00 29
10 02/01/2023 15:07:50 70.05, -50.25 87.13 02/01/2023 15:07:04 70.05, -50.32 87.14 2.67 46
11 02/04/2023 05:43:22 70.43, 90.31 86.77 02/04/2023 05:44:32 70.39, 90.76 86.69 17.33 70
12 02/04/2023 06:34:01 -70.16,-101.96 93.53 02/04/2023 06:34:04 -70.17,-101.92 93.52 1.81 3
13 02/04/2023 07:24:44 70.01, 65.59 86.30 02/04/2023 07:23:32 70.00, 65.49 86.31 3.79 72

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/23/2023
SNOs_Map_NPP_LANDSAT-9_20230123.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 01/23/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9