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: 9/7/2023
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 09/08/2023 05:42:58 -70.60, -89.87 115.24 09/08/2023 05:44:09 -70.50, -89.01 115.37 33.51 71
2 09/08/2023 06:33:36 70.18, 78.11 64.34 09/08/2023 06:33:40 70.18, 78.17 64.34 2.15 4
3 09/08/2023 07:24:18 -70.09,-114.43 115.75 09/08/2023 07:23:10 -70.07,-114.36 115.76 3.13 68
4 09/10/2023 21:59:44 -70.24, 26.49 114.61 09/10/2023 22:00:45 -70.21, 26.44 114.64 3.15 61
5 09/10/2023 22:50:28 70.13,-166.04 65.30 09/10/2023 22:50:12 70.11,-166.06 65.27 2.52 16
6 09/10/2023 23:41:00 -69.51, 2.20 115.34 09/10/2023 23:39:50 -69.56, 0.81 115.25 54.53 70
7 09/13/2023 14:16:36 -70.19, 142.33 113.64 09/13/2023 14:17:16 -70.18, 142.26 113.66 3.21 40
8 09/13/2023 15:07:20 70.09, -50.21 66.27 09/13/2023 15:06:43 70.07, -50.24 66.25 3.14 37
9 09/16/2023 05:42:57 70.89, 89.67 68.10 09/16/2023 05:44:05 70.82, 91.47 67.99 66.22 68
10 09/16/2023 06:33:27 -70.16,-101.84 112.65 09/16/2023 06:33:45 -70.17,-101.87 112.65 1.23 18
11 09/16/2023 07:24:11 70.06, 65.62 67.26 09/16/2023 07:23:12 70.05, 65.62 67.26 0.68 59
12 09/18/2023 21:59:37 70.24,-153.51 68.45 09/18/2023 22:00:45 70.23,-153.52 68.44 0.88 68
13 09/18/2023 22:50:19 -70.13, 13.98 111.65 09/18/2023 22:50:15 -70.13, 13.97 111.65 0.38 4
14 09/18/2023 23:40:58 69.77,-178.17 68.00 09/18/2023 23:39:46 69.80,-178.86 68.04 26.56 72

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/7/2023
SNOs_Map_NPP_LANDSAT-9_20230907.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 09/07/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9