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: 1/9/2023
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 01/11/2023 05:43:19 -70.95, -90.55 87.20 01/11/2023 05:44:27 -70.86, -88.51 87.36 74.84 68
2 01/11/2023 06:33:50 70.15, 78.04 91.96 01/11/2023 06:34:05 70.16, 78.09 91.96 1.96 15
3 01/11/2023 07:24:32 -70.06,-114.50 88.15 01/11/2023 07:23:35 -70.05,-114.43 88.15 2.66 57
4 01/13/2023 22:00:03 -70.24, 26.37 88.38 01/13/2023 22:01:06 -70.24, 26.45 88.39 3.07 63
5 01/13/2023 22:50:45 70.07,-166.06 91.44 01/13/2023 22:50:33 70.08,-166.14 91.45 3.10 12
6 01/13/2023 23:41:20 -69.61, 1.95 89.05 01/13/2023 23:40:09 -69.64, 0.89 88.97 41.36 71
7 01/16/2023 14:16:58 -70.16, 142.26 88.94 01/16/2023 14:17:33 -70.19, 142.26 88.92 3.52 35
8 01/16/2023 15:07:42 70.05, -50.27 90.94 01/16/2023 15:07:00 70.08, -50.25 90.97 3.10 42
9 01/19/2023 05:43:17 70.46, 90.24 90.86 01/19/2023 05:44:28 70.38, 90.79 90.75 22.25 71
10 01/19/2023 06:33:55 -70.15,-101.95 89.49 01/19/2023 06:34:00 -70.17,-101.88 89.47 3.55 5
11 01/19/2023 07:24:39 70.04, 65.52 90.40 01/19/2023 07:23:27 70.05, 65.60 90.42 3.11 72
12 01/21/2023 22:00:09 70.19,-153.57 90.00 01/21/2023 22:00:57 70.22,-153.56 90.02 2.84 48
13 01/21/2023 22:50:51 -70.09, 13.91 90.12 01/21/2023 22:50:27 -70.12, 13.93 90.09 3.38 24

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/9/2023
SNOs_Map_NPP_LANDSAT-9_20230109.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 01/09/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9