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: 2/21/2023
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 02/22/2023 22:00:13 70.23,-153.56 80.30 02/22/2023 22:00:57 70.24,-153.59 80.30 1.19 44
2 02/22/2023 22:50:55 -70.14, 13.90 99.81 02/22/2023 22:50:27 -70.12, 13.88 99.83 2.50 28
3 02/25/2023 13:26:36 -71.01, 153.65 99.86 02/25/2023 13:27:44 -70.90, 155.66 100.05 73.74 68
4 02/25/2023 14:17:07 70.22, -37.76 79.30 02/25/2023 14:17:22 70.20, -37.75 79.27 2.47 15
5 02/25/2023 15:07:48 -70.07, 129.79 100.88 02/25/2023 15:06:52 -70.08, 129.72 100.86 2.65 56
6 02/28/2023 05:43:16 -70.27, -89.36 101.65 02/28/2023 05:44:19 -70.29, -89.36 101.64 2.08 63
7 02/28/2023 06:34:00 70.16, 78.12 78.23 02/28/2023 06:33:46 70.18, 78.13 78.24 1.82 14
8 02/28/2023 07:24:34 -69.65,-113.79 102.33 02/28/2023 07:23:23 -69.68,-114.93 102.24 44.53 71
9 03/02/2023 22:00:09 -70.22, 26.50 102.72 03/02/2023 22:00:43 -70.24, 26.47 102.71 2.41 34
10 03/02/2023 22:50:53 70.12,-166.03 77.16 03/02/2023 22:50:10 70.13,-166.04 77.17 1.41 43
11 03/05/2023 13:26:22 70.44, -25.38 76.49 03/05/2023 13:27:34 70.38, -25.06 76.40 13.74 72
12 03/05/2023 14:17:02 -70.24, 142.26 103.74 03/05/2023 14:17:05 -70.22, 142.34 103.77 3.56 3
13 03/05/2023 15:07:45 70.08, -50.18 76.08 03/05/2023 15:06:32 70.10, -50.18 76.11 2.14 73

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/21/2023
SNOs_Map_NPP_LANDSAT-9_20230221.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 02/21/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9