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: 1/7/2023
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 01/08/2023 14:16:53 70.16, -37.74 92.35 01/08/2023 14:17:37 70.18, -37.76 92.37 2.60 44
2 01/08/2023 15:07:35 -70.07, 129.71 87.75 01/08/2023 15:07:07 -70.07, 129.72 87.75 0.36 28
3 01/11/2023 05:43:19 -70.97, -90.59 87.18 01/11/2023 05:44:27 -70.85, -88.54 87.37 76.07 68
4 01/11/2023 06:33:49 70.12, 78.08 91.93 01/11/2023 06:34:05 70.14, 78.06 91.94 1.61 16
5 01/11/2023 07:24:31 -70.03,-114.46 88.17 01/11/2023 07:23:35 -70.03,-114.46 88.17 0.25 56
6 01/13/2023 22:00:02 -70.21, 26.42 88.41 01/13/2023 22:01:06 -70.23, 26.43 88.40 2.91 64
7 01/13/2023 22:50:46 70.10,-166.10 91.47 01/13/2023 22:50:33 70.12,-166.08 91.49 2.83 13
8 01/13/2023 23:41:21 -69.63, 1.91 89.03 01/13/2023 23:40:09 -69.69, 0.95 88.93 37.93 72
9 01/16/2023 14:16:59 -70.18, 142.23 88.92 01/16/2023 14:17:34 -70.19, 142.26 88.91 2.09 35
10 01/16/2023 15:07:43 70.07, -50.30 90.97 01/16/2023 15:07:01 70.08, -50.25 90.97 1.81 42
11 01/19/2023 05:43:18 70.48, 90.21 90.87 01/19/2023 05:44:29 70.40, 90.81 90.76 24.02 71
12 01/19/2023 06:33:55 -70.11,-101.89 89.52 01/19/2023 06:34:02 -70.13,-101.94 89.50 2.98 7
13 01/19/2023 07:24:39 70.00, 65.58 90.36 01/19/2023 07:23:29 70.01, 65.54 90.38 1.68 70

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/7/2023
SNOs_Map_NPP_LANDSAT-9_20230107.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 01/07/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9