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: 4/2/2023
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 04/03/2023 21:10:14 70.34,-141.10 64.83 04/03/2023 21:11:09 70.34,-141.09 64.82 0.75 55
2 04/03/2023 22:00:55 -70.21, 26.43 115.33 04/03/2023 22:00:39 -70.23, 26.38 115.31 2.54 16
3 04/03/2023 22:51:26 69.39,-165.05 63.82 04/03/2023 22:50:18 69.46,-167.03 63.95 78.07 68
4 04/06/2023 13:27:10 70.27, -25.22 63.74 04/06/2023 13:27:38 70.30, -25.27 63.76 3.25 28
5 04/06/2023 14:17:52 -70.19, 142.23 116.37 04/06/2023 14:17:08 -70.19, 142.20 116.37 1.14 44
6 04/09/2023 04:53:26 -70.54, -77.18 116.98 04/09/2023 04:54:37 -70.48, -76.76 117.06 16.91 71
7 04/09/2023 05:44:07 70.27, 90.56 62.72 04/09/2023 05:44:06 70.27, 90.56 62.72 0.23 1
8 04/09/2023 06:34:49 -70.18,-101.98 117.39 04/09/2023 06:33:36 -70.16,-101.96 117.40 2.51 73
9 04/11/2023 21:10:18 -70.34, 38.92 118.19 04/11/2023 21:11:05 -70.36, 38.94 118.18 2.66 47
10 04/11/2023 22:01:02 70.22,-153.59 61.68 04/11/2023 22:00:32 70.25,-153.58 61.70 2.89 30
11 04/14/2023 12:36:44 71.02, -13.74 61.56 04/14/2023 12:37:52 70.95, -11.92 61.44 66.50 68
12 04/14/2023 13:27:14 -70.30, 154.76 119.21 04/14/2023 13:27:32 -70.30, 154.74 119.21 0.87 18
13 04/14/2023 14:17:58 70.18, -37.76 60.66 04/14/2023 14:16:59 70.18, -37.78 60.67 1.00 59

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/2/2023
SNOs_Map_NPP_LANDSAT-9_20230402.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 04/02/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9