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: 4/28/2023
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 04/30/2023 13:26:57 -70.41, 154.79 124.47 04/30/2023 13:27:25 -70.39, 154.84 124.50 2.99 28
2 04/30/2023 14:17:41 70.30, -37.72 55.40 04/30/2023 14:16:52 70.29, -37.66 55.39 2.68 49
3 05/03/2023 04:53:09 70.63, 102.91 54.96 05/03/2023 04:54:20 70.55, 103.33 54.86 17.84 71
4 05/03/2023 05:43:47 -70.32, -89.29 125.37 05/03/2023 05:43:52 -70.32, -89.37 125.37 2.76 5
5 05/03/2023 06:34:31 70.22, 78.18 54.51 05/03/2023 06:33:19 70.22, 78.12 54.52 2.27 72
6 05/05/2023 21:09:55 70.39,-140.94 53.94 05/05/2023 21:10:47 70.39,-141.02 53.93 2.84 52
7 05/05/2023 22:00:37 -70.30, 26.52 126.17 05/05/2023 22:00:17 -70.28, 26.46 126.19 3.35 20
8 05/05/2023 22:51:05 69.34,-164.75 52.85 05/05/2023 22:49:58 69.39,-167.12 52.95 93.12 67
9 05/08/2023 13:26:46 70.38, -25.14 53.18 05/08/2023 13:27:12 70.36, -25.16 53.16 1.93 26
10 05/08/2023 14:17:28 -70.28, 142.33 126.93 05/08/2023 14:16:42 -70.26, 142.31 126.96 2.75 46
11 05/11/2023 04:52:56 -70.63, -77.06 127.27 05/11/2023 04:54:08 -70.53, -76.67 127.38 17.99 72
12 05/11/2023 05:43:37 70.37, 90.65 52.47 05/11/2023 05:43:36 70.36, 90.73 52.45 3.23 1
13 05/11/2023 06:34:19 -70.27,-101.87 127.65 05/11/2023 06:33:06 -70.25,-101.80 127.66 3.41 73

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/28/2023
SNOs_Map_NPP_LANDSAT-9_20230428.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 04/28/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9