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: 10/4/2023
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 10/04/2023 21:59:29 70.90,-154.51 75.32 10/04/2023 22:00:37 70.77,-152.72 75.18 66.91 68
2 10/04/2023 22:49:59 -70.17, 13.96 105.41 10/04/2023 22:50:16 -70.17, 14.02 105.41 2.28 17
3 10/04/2023 23:40:42 70.01,-178.49 74.45 10/04/2023 23:39:44 70.01,-178.56 74.45 2.98 58
4 10/07/2023 14:16:06 70.22, -37.64 75.66 10/07/2023 14:17:16 70.25, -37.62 75.69 3.23 70
5 10/07/2023 15:06:48 -70.12, 129.82 104.43 10/07/2023 15:06:46 -70.14, 129.86 104.41 2.25 2
6 10/07/2023 15:57:28 69.81, -62.39 75.27 10/07/2023 15:56:16 69.87, -62.88 75.33 19.91 72
7 10/10/2023 06:32:56 70.18, 78.19 76.64 10/10/2023 06:33:47 70.18, 78.16 76.64 1.57 51
8 10/10/2023 07:23:38 -70.09,-114.34 103.44 10/10/2023 07:23:17 -70.07,-114.36 103.46 1.84 21
9 10/10/2023 08:14:05 69.08, 54.43 75.57 10/10/2023 08:12:59 69.13, 52.01 75.62 96.17 66
10 10/12/2023 22:49:46 70.16,-165.99 77.63 10/12/2023 22:50:16 70.18,-165.96 77.64 1.90 30
11 10/12/2023 23:40:28 -70.06, 1.48 102.46 10/12/2023 23:39:46 -70.07, 1.53 102.45 2.11 42
12 10/15/2023 14:16:01 -70.72, 141.60 100.82 10/15/2023 14:17:11 -70.63, 142.95 100.92 50.84 70
13 10/15/2023 15:06:36 70.15, -50.19 78.62 10/15/2023 15:06:45 70.14, -50.13 78.60 2.95 9
14 10/15/2023 15:57:18 -70.05, 117.28 101.47 10/15/2023 15:56:15 -70.04, 117.36 101.49 3.61 63

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 10/4/2023
SNOs_Map_NPP_LANDSAT-9_20231004.jpg

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

Historial Predications of SNOs between NPP and LANDSAT-9