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: 5/18/2023
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 05/19/2023 04:52:59 70.84, 102.56 51.06 05/19/2023 04:54:09 70.75, 103.62 50.95 39.81 70
2 05/19/2023 05:43:34 -70.38, -89.38 129.42 05/19/2023 05:43:44 -70.36, -89.33 129.45 2.89 10
3 05/19/2023 06:34:18 70.27, 78.10 50.46 05/19/2023 06:33:11 70.26, 78.17 50.45 2.67 67
4 05/21/2023 21:09:44 70.40,-140.95 50.05 05/21/2023 21:10:42 70.41,-141.02 50.05 2.52 58
5 05/21/2023 22:00:26 -70.30, 26.51 130.06 05/21/2023 22:00:12 -70.29, 26.45 130.07 2.79 14
6 05/21/2023 22:50:58 69.56,-165.06 49.18 05/21/2023 22:49:50 69.58,-166.90 49.24 71.40 68
7 05/24/2023 13:26:37 70.38, -25.16 49.52 05/24/2023 13:27:09 70.37, -25.19 49.50 2.09 32
8 05/24/2023 14:17:19 -70.28, 142.31 130.59 05/24/2023 14:16:39 -70.26, 142.28 130.62 3.35 40
9 05/27/2023 04:52:53 -70.84, -77.43 130.48 05/27/2023 04:54:04 -70.69, -76.47 130.65 38.74 71
10 05/27/2023 05:43:30 70.37, 90.63 49.04 05/27/2023 05:43:35 70.36, 90.69 49.02 2.36 5
11 05/27/2023 06:34:12 -70.27,-101.89 131.08 05/27/2023 06:33:05 -70.25,-101.84 131.09 2.78 67
12 05/29/2023 21:09:37 -70.41, 39.03 131.35 05/29/2023 21:10:34 -70.40, 38.98 131.37 2.63 57
13 05/29/2023 22:00:21 70.31,-153.51 48.55 05/29/2023 22:00:00 70.34,-153.46 48.57 3.08 21

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/18/2023
SNOs_Map_NPP_LANDSAT-9_20230518.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 05/18/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9