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: 1/28/2023
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 01/29/2023 22:00:11 -70.23, 26.38 91.93 01/29/2023 22:01:08 -70.21, 26.37 91.97 2.41 57
2 01/29/2023 22:50:55 70.12,-166.14 87.94 01/29/2023 22:50:35 70.11,-166.12 87.94 1.17 20
3 01/29/2023 23:41:24 -69.34, 2.33 92.89 01/29/2023 23:40:16 -69.40, 0.52 92.75 71.22 68
4 02/01/2023 14:17:06 -70.18, 142.24 92.74 02/01/2023 14:17:39 -70.20, 142.23 92.72 3.12 33
5 02/01/2023 15:07:50 70.07, -50.28 87.14 02/01/2023 15:07:07 70.04, -50.35 87.13 3.60 43
6 02/04/2023 05:43:26 70.59, 90.04 86.94 02/04/2023 05:44:37 70.44, 90.81 86.74 33.38 71
7 02/04/2023 06:34:02 -70.18,-101.98 93.51 02/04/2023 06:34:10 -70.16,-101.95 93.53 1.80 8
8 02/04/2023 07:24:46 70.07, 65.49 86.37 02/04/2023 07:23:37 70.06, 65.54 86.36 2.41 69
9 02/06/2023 22:00:15 70.24,-153.62 85.76 02/06/2023 22:01:10 70.26,-153.58 85.76 2.60 55
10 02/06/2023 22:50:57 -70.13, 13.86 94.37 02/06/2023 22:50:40 -70.15, 13.90 94.35 2.55 17
11 02/06/2023 23:41:27 69.29,-177.58 84.74 02/06/2023 23:40:19 69.38,-179.51 84.92 76.60 68
12 02/09/2023 14:17:09 70.21, -37.79 84.88 02/09/2023 14:17:39 70.21, -37.76 84.88 1.32 30
13 02/09/2023 15:07:51 -70.10, 129.69 95.25 02/09/2023 15:07:09 -70.11, 129.72 95.24 1.67 42

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/28/2023
SNOs_Map_NPP_LANDSAT-9_20230128.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 01/28/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9