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: 12/22/2023
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 12/23/2023 22:49:41 -70.15, 13.93 86.50 12/23/2023 22:50:30 -70.15, 13.95 86.51 0.91 49
2 12/23/2023 23:40:25 70.03,-178.58 93.38 12/23/2023 23:39:57 70.04,-178.56 93.39 1.53 28
3 12/26/2023 14:16:09 70.94, -38.89 94.26 12/26/2023 14:17:16 70.87, -36.73 94.14 79.15 67
4 12/26/2023 15:06:37 -70.11, 129.75 86.61 12/26/2023 15:06:58 -70.10, 129.77 86.62 0.89 21
5 12/26/2023 15:57:21 69.99, -62.76 93.28 12/26/2023 15:56:25 70.00, -62.74 93.28 0.97 56
6 12/29/2023 06:32:52 70.17, 78.10 93.35 12/29/2023 06:33:56 70.19, 78.14 93.36 2.37 64
7 12/29/2023 07:23:34 -70.08,-114.44 86.75 12/29/2023 07:23:26 -70.08,-114.38 86.75 2.23 8
8 12/29/2023 08:14:10 69.54, 53.67 92.70 12/29/2023 08:12:59 69.64, 52.65 92.82 40.92 71
9 12/31/2023 22:49:48 70.10,-166.03 93.11 12/31/2023 22:50:24 70.13,-166.05 93.13 3.16 36
10 12/31/2023 23:40:30 -70.00, 1.44 87.00 12/31/2023 23:39:54 -70.02, 1.43 86.98 2.57 36
11 01/03/2024 14:16:08 -70.56, 141.70 86.64 01/03/2024 14:17:19 -70.48, 142.70 86.76 38.16 71
12 01/03/2024 15:06:45 70.09, -50.25 92.87 01/03/2024 15:06:51 70.09, -50.22 92.87 1.31 6
13 01/03/2024 15:57:27 -69.98, 117.22 87.24 01/03/2024 15:56:21 -69.98, 117.27 87.24 1.67 66

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 12/22/2023
SNOs_Map_NPP_LANDSAT-9_20231222.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 12/22/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9