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: 1/25/2023
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 01/27/2023 05:43:22 -70.57, -89.93 90.88 01/27/2023 05:44:33 -70.46, -89.13 91.03 32.04 71
2 01/27/2023 06:34:00 70.14, 78.05 88.67 01/27/2023 06:34:04 70.14, 78.05 88.67 0.03 4
3 01/27/2023 07:24:42 -70.05,-114.48 91.44 01/27/2023 07:23:34 -70.03,-114.47 91.45 2.02 68
4 01/29/2023 22:00:12 -70.24, 26.36 91.92 01/29/2023 22:01:08 -70.25, 26.43 91.93 2.46 56
5 01/29/2023 22:50:55 70.08,-166.08 87.90 01/29/2023 22:50:36 70.09,-166.15 87.91 2.94 19
6 01/29/2023 23:41:25 -69.35, 2.32 92.88 01/29/2023 23:40:16 -69.43, 0.57 92.72 68.99 69
7 02/01/2023 14:17:06 -70.19, 142.22 92.72 02/01/2023 14:17:38 -70.21, 142.25 92.71 2.38 32
8 02/01/2023 15:07:50 70.09, -50.31 87.17 02/01/2023 15:07:05 70.11, -50.26 87.19 2.77 45
9 02/04/2023 05:43:24 70.52, 90.16 86.87 02/04/2023 05:44:36 70.41, 90.78 86.72 26.12 72
10 02/04/2023 06:34:01 -70.15,-101.95 93.54 02/04/2023 06:34:09 -70.14,-101.98 93.55 2.27 8
11 02/04/2023 07:24:45 70.05, 65.52 86.35 02/04/2023 07:23:36 70.03, 65.51 86.34 2.68 69
12 02/06/2023 22:00:14 70.23,-153.61 85.75 02/06/2023 22:01:08 70.24,-153.59 85.74 0.72 54
13 02/06/2023 22:50:56 -70.13, 13.87 94.38 02/06/2023 22:50:38 -70.13, 13.89 94.37 1.05 18

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/25/2023
SNOs_Map_NPP_LANDSAT-9_20230125.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 01/25/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9