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: 10/18/2023
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 10/20/2023 22:49:54 -70.16, 13.96 99.45 10/20/2023 22:50:24 -70.18, 14.02 99.42 3.40 30
2 10/20/2023 23:40:38 70.04,-178.54 80.45 10/20/2023 23:39:52 70.02,-178.56 80.44 1.70 46
3 10/23/2023 14:16:11 70.36, -37.91 81.70 10/23/2023 14:17:22 70.32, -37.53 81.66 15.07 71
4 10/23/2023 15:06:50 -70.12, 129.79 98.54 10/23/2023 15:06:54 -70.10, 129.78 98.56 1.69 4
5 10/23/2023 15:57:34 70.00, -62.72 81.36 10/23/2023 15:56:21 69.99, -62.72 81.35 0.46 73
6 10/26/2023 06:33:03 70.18, 78.14 82.44 10/26/2023 06:33:51 70.19, 78.17 82.46 2.24 48
7 10/26/2023 07:23:45 -70.09,-114.41 97.64 10/26/2023 07:23:21 -70.09,-114.35 97.64 2.22 24
8 10/28/2023 21:59:32 -71.16, 24.98 95.68 10/28/2023 22:00:37 -71.06, 27.73 95.77 99.46 65
9 10/28/2023 22:49:58 70.11,-166.00 83.28 10/28/2023 22:50:19 70.14,-166.02 83.30 2.94 21
10 10/28/2023 23:40:40 -70.02, 1.46 96.81 10/28/2023 23:39:49 -70.03, 1.46 96.80 1.40 51
11 10/31/2023 14:16:10 -70.22, 142.29 95.75 10/31/2023 14:17:19 -70.21, 142.33 95.76 2.29 69
12 10/31/2023 15:06:54 70.11, -50.23 84.16 10/31/2023 15:06:46 70.09, -50.19 84.14 2.56 8
13 10/31/2023 15:57:31 -69.75, 117.62 96.19 10/31/2023 15:56:19 -69.82, 117.07 96.13 22.84 72

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 10/18/2023
SNOs_Map_NPP_LANDSAT-9_20231018.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 10/18/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9