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: 3/17/2023
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 03/18/2023 21:10:04 70.73,-141.70 71.53 03/18/2023 21:11:14 70.65,-140.62 71.41 40.30 70
2 03/18/2023 22:00:38 -70.22, 26.43 109.02 03/18/2023 22:00:50 -70.22, 26.36 109.03 2.48 12
3 03/18/2023 22:51:22 70.10,-166.07 70.84 03/18/2023 22:50:17 70.11,-166.14 70.86 3.18 65
4 03/21/2023 13:26:55 70.32, -25.28 70.04 03/21/2023 13:27:47 70.34, -25.21 70.04 3.02 52
5 03/21/2023 14:17:36 -70.18, 142.26 110.13 03/21/2023 14:17:18 -70.17, 142.19 110.13 2.82 18
6 03/21/2023 15:08:05 69.26, -49.07 68.90 03/21/2023 15:06:58 69.34, -51.31 69.07 88.45 67
7 03/24/2023 05:43:51 70.24, 90.62 68.89 03/24/2023 05:44:14 70.24, 90.54 68.89 2.95 23
8 03/24/2023 06:34:33 -70.15,-101.93 111.22 03/24/2023 06:33:44 -70.14,-101.98 111.23 2.42 49
9 03/26/2023 21:10:05 -70.34, 38.91 112.05 03/26/2023 21:11:13 -70.33, 38.90 112.08 1.67 68
10 03/26/2023 22:00:49 70.22,-153.59 67.81 03/26/2023 22:00:40 70.21,-153.62 67.80 1.83 9
11 03/26/2023 22:51:26 -69.87, 14.27 112.58 03/26/2023 22:50:14 -69.89, 13.56 112.53 27.27 72
12 03/29/2023 13:27:02 -70.28, 154.78 113.17 03/29/2023 13:27:38 -70.30, 154.76 113.16 2.33 36
13 03/29/2023 14:17:46 70.17, -37.74 66.70 03/29/2023 14:17:05 70.18, -37.76 66.72 2.08 41

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/17/2023
SNOs_Map_NPP_LANDSAT-9_20230317.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 03/17/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9