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: 3/19/2023
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 03/21/2023 13:26:54 70.28, -25.21 69.99 03/21/2023 13:27:48 70.30, -25.27 70.00 3.20 54
2 03/21/2023 14:17:36 -70.19, 142.24 110.12 03/21/2023 14:17:18 -70.19, 142.20 110.12 1.58 18
3 03/21/2023 15:08:05 69.27, -49.09 68.91 03/21/2023 15:06:58 69.36, -51.29 69.09 87.13 67
4 03/24/2023 05:43:53 70.30, 90.52 68.95 03/24/2023 05:44:15 70.29, 90.60 68.93 3.24 22
5 03/24/2023 06:34:34 -70.16,-101.95 111.21 03/24/2023 06:33:45 -70.18,-101.93 111.19 2.19 49
6 03/26/2023 21:10:05 -70.35, 38.90 112.05 03/26/2023 21:11:14 -70.35, 38.93 112.06 1.17 69
7 03/26/2023 22:00:49 70.23,-153.60 67.82 03/26/2023 22:00:41 70.24,-153.59 67.83 1.31 8
8 03/26/2023 22:51:27 -69.93, 14.18 112.51 03/26/2023 22:50:14 -69.97, 13.66 112.45 20.11 73
9 03/29/2023 13:27:02 -70.28, 154.77 113.17 03/29/2023 13:27:41 -70.27, 154.70 113.19 3.26 39
10 03/29/2023 14:17:47 70.22, -37.82 66.76 03/29/2023 14:17:07 70.21, -37.74 66.74 3.31 40
11 04/01/2023 04:53:22 70.59, 102.73 66.13 04/01/2023 04:54:33 70.52, 103.33 66.03 23.33 71
12 04/01/2023 05:43:59 -70.23, -89.38 114.27 04/01/2023 05:44:06 -70.25, -89.43 114.25 3.09 7
13 04/01/2023 06:34:43 70.12, 78.11 65.61 04/01/2023 06:33:33 70.14, 78.05 65.63 3.00 70

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/19/2023
SNOs_Map_NPP_LANDSAT-9_20230319.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 03/19/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9