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: 9/14/2023
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 09/16/2023 05:42:57 70.90, 89.66 68.10 09/16/2023 05:44:05 70.80, 91.44 67.97 66.05 68
2 09/16/2023 06:33:27 -70.17,-101.86 112.64 09/16/2023 06:33:44 -70.20,-101.82 112.62 3.21 17
3 09/16/2023 07:24:11 70.07, 65.61 67.27 09/16/2023 07:23:12 70.04, 65.60 67.25 2.84 59
4 09/18/2023 21:59:37 70.25,-153.52 68.46 09/18/2023 22:00:44 70.25,-153.50 68.46 0.86 67
5 09/18/2023 22:50:19 -70.15, 13.95 111.63 09/18/2023 22:50:14 -70.14, 13.98 111.64 1.55 5
6 09/18/2023 23:40:57 69.73,-178.11 67.96 09/18/2023 23:39:45 69.81,-178.84 68.05 29.54 72
7 09/21/2023 14:16:28 70.18, -37.65 69.43 09/21/2023 14:17:13 70.21, -37.67 69.45 2.59 45
8 09/21/2023 15:07:10 -70.08, 129.83 110.66 09/21/2023 15:06:43 -70.10, 129.81 110.65 2.03 27
9 09/24/2023 06:33:20 70.18, 78.13 70.47 09/24/2023 06:33:41 70.18, 78.19 70.47 1.98 21
10 09/24/2023 07:24:02 -70.08,-114.39 109.63 09/24/2023 07:23:11 -70.08,-114.33 109.63 2.27 51
11 09/26/2023 21:59:28 -70.34, 26.36 108.35 09/26/2023 22:00:40 -70.30, 26.60 108.40 9.82 72
12 09/26/2023 22:50:10 70.14,-166.02 71.47 09/26/2023 22:50:08 70.13,-166.00 71.45 1.57 2
13 09/26/2023 23:40:51 -69.98, 1.54 108.69 09/26/2023 23:39:39 -69.97, 1.41 108.69 5.15 72

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/14/2023
SNOs_Map_NPP_LANDSAT-9_20230914.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 09/14/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9