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: 5/9/2023
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 05/11/2023 04:53:04 -70.91, -77.54 126.97 05/11/2023 04:54:14 -70.81, -76.29 127.10 46.85 70
2 05/11/2023 05:43:39 70.33, 90.70 52.42 05/11/2023 05:43:48 70.33, 90.64 52.43 2.59 9
3 05/11/2023 06:34:21 -70.24,-101.84 127.69 05/11/2023 06:33:18 -70.22,-101.90 127.70 3.05 63
4 05/13/2023 21:09:49 -70.44, 38.99 128.13 05/13/2023 21:10:49 -70.44, 39.02 128.14 1.26 60
5 05/13/2023 22:00:33 70.33,-153.53 51.75 05/13/2023 22:00:16 70.34,-153.48 51.76 1.89 17
6 05/13/2023 22:51:05 -69.71, 14.73 128.90 05/13/2023 22:49:55 -69.73, 13.30 128.85 55.31 70
7 05/16/2023 13:26:42 -70.39, 154.84 128.82 05/16/2023 13:27:17 -70.41, 154.86 128.80 3.02 35
8 05/16/2023 14:17:26 70.29, -37.69 51.07 05/16/2023 14:16:44 70.31, -37.65 51.09 2.85 42
9 05/19/2023 04:52:59 70.81, 102.60 51.04 05/19/2023 04:54:10 70.68, 103.51 50.88 36.47 71
10 05/19/2023 05:43:34 -70.34, -89.32 129.46 05/19/2023 05:43:44 -70.36, -89.34 129.45 1.50 10
11 05/19/2023 06:34:18 70.24, 78.14 50.43 05/19/2023 06:33:11 70.24, 78.14 50.44 0.21 67
12 05/21/2023 21:09:45 70.41,-140.98 50.06 05/21/2023 21:10:41 70.43,-140.99 50.07 1.89 56
13 05/21/2023 22:00:27 -70.30, 26.51 130.06 05/21/2023 22:00:11 -70.32, 26.49 130.04 2.11 16
14 05/21/2023 22:50:58 69.52,-165.00 49.13 05/21/2023 22:49:50 69.54,-166.95 49.20 75.59 68

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/9/2023
SNOs_Map_NPP_LANDSAT-9_20230509.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 05/09/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9