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: 2/5/2023
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 02/06/2023 22:00:15 70.25,-153.64 85.77 02/06/2023 22:01:10 70.26,-153.58 85.76 2.48 55
2 02/06/2023 22:50:57 -70.16, 13.82 94.35 02/06/2023 22:50:40 -70.15, 13.89 94.36 2.95 17
3 02/06/2023 23:41:27 69.30,-177.60 84.75 02/06/2023 23:40:19 69.38,-179.52 84.92 75.57 68
4 02/09/2023 14:17:10 70.21, -37.81 84.89 02/09/2023 14:17:40 70.24, -37.74 84.90 3.40 30
5 02/09/2023 15:07:52 -70.12, 129.66 95.23 02/09/2023 15:07:10 -70.12, 129.73 95.22 2.87 42
6 02/12/2023 05:43:28 -70.65, -90.04 95.52 02/12/2023 05:44:39 -70.51, -89.10 95.71 38.03 71
7 02/12/2023 06:34:05 70.18, 78.02 83.98 02/12/2023 06:34:10 70.19, 78.07 83.98 1.86 5
8 02/12/2023 07:24:47 -70.08,-114.51 96.14 02/12/2023 07:23:40 -70.08,-114.45 96.14 2.12 67
9 02/14/2023 22:00:15 -70.26, 26.37 96.84 02/14/2023 22:01:11 -70.28, 26.44 96.83 3.48 56
10 02/14/2023 22:50:58 70.10,-166.08 82.99 02/14/2023 22:50:39 70.12,-166.16 83.01 3.12 19
11 02/14/2023 23:41:28 -69.37, 2.33 97.80 02/14/2023 23:40:20 -69.41, 0.50 97.67 71.69 68
12 02/17/2023 14:17:09 -70.19, 142.26 97.84 02/17/2023 14:17:41 -70.19, 142.18 97.84 2.96 32
13 02/17/2023 15:07:53 70.09, -50.27 82.04 02/17/2023 15:07:08 70.08, -50.33 82.04 2.44 45

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/5/2023
SNOs_Map_NPP_LANDSAT-9_20230205.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 02/05/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9