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: 12/20/2023
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 -70.41,-102.23 86.23 12/21/2023 06:33:58 -70.33,-101.68 86.33 22.64 71
2 12/21/2023 07:23:27 70.09, 65.58 93.44 12/21/2023 07:23:28 70.06, 65.59 93.41 2.73 1
3 12/21/2023 08:14:08 -69.95,-126.88 86.71 12/21/2023 08:12:58 -69.95,-126.94 86.70 2.03 70
4 12/23/2023 22:49:35 -70.19, 13.91 86.47 12/23/2023 22:50:30 -70.16, 13.97 86.50 3.44 55
5 12/23/2023 23:40:18 70.02,-178.54 93.37 12/23/2023 23:39:58 70.00,-178.61 93.35 3.55 20
6 12/24/2023 00:30:46 -69.24, -10.08 87.43 12/24/2023 00:29:38 -69.29, -11.95 87.35 73.96 68
7 12/26/2023 15:06:25 -70.13, 129.78 86.59 12/26/2023 15:06:58 -70.13, 129.81 86.59 1.44 33
8 12/26/2023 15:57:09 70.02, -62.75 93.31 12/26/2023 15:56:25 70.03, -62.70 93.31 2.13 44
9 12/29/2023 06:32:42 70.60, 77.50 93.79 12/29/2023 06:33:52 70.46, 78.53 93.62 41.30 70
10 12/29/2023 07:23:16 -70.08,-114.36 86.75 12/29/2023 07:23:27 -70.07,-114.39 86.76 1.06 11
11 12/29/2023 08:14:00 69.98, 53.10 93.15 12/29/2023 08:12:54 69.96, 53.10 93.14 1.41 66
12 12/31/2023 22:49:25 70.14,-165.99 93.15 12/31/2023 22:50:25 70.14,-166.04 93.15 1.70 60
13 12/31/2023 23:40:07 -70.04, 1.48 86.97 12/31/2023 23:39:55 -70.04, 1.45 86.96 1.34 12
14 01/01/2024 00:30:40 69.35, 169.79 92.33 01/01/2024 00:29:31 69.43, 168.25 92.45 60.87 69

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 12/20/2023
SNOs_Map_NPP_LANDSAT-9_20231220.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 12/20/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9