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: 10/11/2023
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 10/12/2023 22:49:45 70.15,-165.97 77.62 10/12/2023 22:50:20 70.15,-166.02 77.61 1.93 35
2 10/12/2023 23:40:27 -70.06, 1.48 102.46 10/12/2023 23:39:50 -70.04, 1.46 102.49 3.05 37
3 10/15/2023 14:16:05 -70.99, 141.16 100.55 10/15/2023 14:17:12 -70.90, 143.32 100.65 79.41 67
4 10/15/2023 15:06:35 70.15, -50.19 78.62 10/15/2023 15:06:51 70.14, -50.16 78.60 1.97 16
5 10/15/2023 15:57:16 -70.01, 117.35 101.52 10/15/2023 15:56:21 -70.03, 117.32 101.50 2.69 55
6 10/18/2023 06:32:42 -70.32,-101.97 100.25 10/18/2023 06:33:53 -70.30,-101.70 100.27 10.62 71
7 10/18/2023 07:23:24 70.11, 65.66 79.56 10/18/2023 07:23:21 70.13, 65.71 79.58 3.00 3
8 10/18/2023 08:14:05 -69.97,-126.80 100.58 10/18/2023 08:12:52 -69.97,-126.88 100.57 3.25 73
9 10/20/2023 22:49:29 -70.19, 14.03 99.41 10/20/2023 22:50:24 -70.19, 14.04 99.41 0.76 55
10 10/20/2023 23:40:13 70.09,-178.51 80.50 10/20/2023 23:39:51 70.08,-178.48 80.49 1.31 22
11 10/21/2023 00:30:41 -69.25, -9.97 100.32 10/21/2023 00:29:33 -69.32, -11.89 100.26 76.02 68
12 10/23/2023 15:06:17 -70.18, 129.84 98.48 10/23/2023 15:06:52 -70.15, 129.87 98.50 2.76 35
13 10/23/2023 15:57:00 70.02, -62.62 81.38 10/23/2023 15:56:19 70.04, -62.65 81.40 2.17 41

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 10/11/2023
SNOs_Map_NPP_LANDSAT-9_20231011.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 10/11/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9