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: 12/19/2023
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 12/21/2023 06:32:47 -70.40,-102.21 86.24 12/21/2023 06:33:58 -70.34,-101.66 86.32 21.92 71
2 12/21/2023 07:23:27 70.08, 65.60 93.43 12/21/2023 07:23:28 70.07, 65.60 93.42 0.84 1
3 12/21/2023 08:14:08 -69.94,-126.87 86.72 12/21/2023 08:12:58 -69.96,-126.92 86.69 3.05 70
4 12/23/2023 22:49:34 -70.18, 13.92 86.48 12/23/2023 22:50:29 -70.18, 13.99 86.48 2.57 55
5 12/23/2023 23:40:17 70.02,-178.52 93.36 12/23/2023 23:39:57 70.02,-178.60 93.36 2.69 20
6 12/24/2023 00:30:46 -69.23, -10.07 87.44 12/24/2023 00:29:38 -69.30, -11.94 87.34 73.98 68
7 12/26/2023 15:06:25 -70.12, 129.79 86.60 12/26/2023 15:06:59 -70.09, 129.75 86.62 2.99 34
8 12/26/2023 15:57:09 70.01, -62.74 93.30 12/26/2023 15:56:26 69.99, -62.76 93.27 3.19 43
9 12/29/2023 06:32:42 70.59, 77.52 93.79 12/29/2023 06:33:52 70.47, 78.55 93.64 40.66 70
10 12/29/2023 07:23:16 -70.07,-114.35 86.76 12/29/2023 07:23:27 -70.09,-114.37 86.74 2.76 11
11 12/29/2023 08:14:00 69.97, 53.11 93.14 12/29/2023 08:12:54 69.98, 53.12 93.15 1.43 66
12 12/31/2023 22:49:26 70.18,-166.06 93.20 12/31/2023 22:50:25 70.16,-166.01 93.17 3.03 59
13 12/31/2023 23:40:08 -70.08, 1.42 86.92 12/31/2023 23:39:55 -70.06, 1.48 86.94 3.14 13
14 01/01/2024 00:30:41 69.40, 169.73 92.38 01/01/2024 00:29:31 69.45, 168.28 92.47 57.02 70

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 12/19/2023
SNOs_Map_NPP_LANDSAT-9_20231219.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 12/19/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9