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: 4/7/2023
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 04/09/2023 04:53:25 -70.53, -77.17 116.99 04/09/2023 04:54:37 -70.45, -76.82 117.10 15.97 72
2 04/09/2023 05:44:06 70.25, 90.59 62.70 04/09/2023 05:44:06 70.24, 90.52 62.69 2.82 0
3 04/09/2023 06:34:48 -70.17,-101.97 117.40 04/09/2023 06:33:35 -70.18,-101.93 117.38 1.80 73
4 04/11/2023 21:10:19 -70.37, 38.86 118.16 04/11/2023 21:11:06 -70.35, 38.92 118.19 3.14 47
5 04/11/2023 22:01:03 70.25,-153.64 61.71 04/11/2023 22:00:33 70.24,-153.59 61.70 1.89 30
6 04/14/2023 12:36:45 71.04, -13.78 61.58 04/14/2023 12:37:53 70.98, -11.88 61.47 68.99 68
7 04/14/2023 13:27:15 -70.32, 154.71 119.19 04/14/2023 13:27:33 -70.32, 154.76 119.19 1.80 18
8 04/14/2023 14:17:59 70.20, -37.79 60.68 04/14/2023 14:17:00 70.21, -37.75 60.70 1.88 59
9 04/17/2023 04:53:29 70.38, 103.09 59.93 04/17/2023 04:54:30 70.37, 103.08 59.92 0.69 61
10 04/17/2023 05:44:11 -70.28, -89.45 120.18 04/17/2023 05:44:00 -70.26, -89.44 120.21 2.28 11
11 04/17/2023 06:34:45 69.64, 78.84 59.14 04/17/2023 06:33:35 69.71, 77.43 59.25 54.92 70
12 04/19/2023 21:10:24 70.35,-141.09 58.96 04/19/2023 21:10:55 70.33,-141.09 58.94 2.27 31
13 04/19/2023 22:01:06 -70.25, 26.38 121.15 04/19/2023 22:00:25 -70.22, 26.39 121.18 3.29 41

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/7/2023
SNOs_Map_NPP_LANDSAT-9_20230407.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 04/07/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9