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: 12/25/2023
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 12/26/2023 14:16:10 70.98, -38.96 94.30 12/26/2023 14:17:17 70.90, -36.69 94.17 82.80 67
2 12/26/2023 15:06:37 -70.10, 129.77 86.62 12/26/2023 15:06:59 -70.13, 129.80 86.59 3.37 22
3 12/26/2023 15:57:21 69.98, -62.74 93.27 12/26/2023 15:56:27 69.97, -62.78 93.26 1.90 54
4 12/29/2023 06:32:52 70.17, 78.11 93.35 12/29/2023 06:33:58 70.18, 78.12 93.35 2.00 66
5 12/29/2023 07:23:34 -70.07,-114.43 86.76 12/29/2023 07:23:28 -70.07,-114.40 86.76 1.07 6
6 12/29/2023 08:14:12 69.64, 53.53 92.80 12/29/2023 08:13:00 69.69, 52.71 92.87 31.96 72
7 12/31/2023 22:49:48 70.15,-166.11 93.16 12/31/2023 22:50:25 70.14,-166.05 93.14 2.70 37
8 12/31/2023 23:40:29 -70.00, 1.44 87.00 12/31/2023 23:39:55 -70.03, 1.43 86.97 3.31 34
9 01/03/2024 14:16:09 -70.67, 141.52 86.52 01/03/2024 14:17:19 -70.55, 142.80 86.69 49.20 70
10 01/03/2024 15:06:44 70.10, -50.26 92.88 01/03/2024 15:06:52 70.11, -50.20 92.89 2.94 8
11 01/03/2024 15:57:26 -69.99, 117.21 87.23 01/03/2024 15:56:22 -70.00, 117.28 87.22 3.06 64
12 01/06/2024 06:32:56 -70.15,-101.90 87.34 01/06/2024 06:33:52 -70.16,-101.88 87.34 0.89 56
13 01/06/2024 07:23:40 70.05, 65.57 92.56 01/06/2024 07:23:19 70.04, 65.60 92.55 1.53 21

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 12/25/2023
SNOs_Map_NPP_LANDSAT-9_20231225.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 12/25/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9