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: 1/26/2023
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, -89.92 90.88 01/27/2023 05:44:33 -70.46, -89.12 91.02 31.74 71
2 01/27/2023 06:34:00 70.14, 78.06 88.66 01/27/2023 06:34:04 70.15, 78.06 88.67 1.02 4
3 01/27/2023 07:24:42 -70.05,-114.48 91.45 01/27/2023 07:23:34 -70.03,-114.47 91.45 1.30 68
4 01/29/2023 22:00:11 -70.24, 26.37 91.93 01/29/2023 22:01:07 -70.25, 26.44 91.93 2.98 56
5 01/29/2023 22:50:55 70.13,-166.15 87.95 01/29/2023 22:50:35 70.10,-166.14 87.92 3.49 20
6 01/29/2023 23:41:24 -69.35, 2.33 92.89 01/29/2023 23:40:15 -69.44, 0.58 92.72 69.20 69
7 02/01/2023 14:17:06 -70.18, 142.23 92.73 02/01/2023 14:17:39 -70.17, 142.19 92.75 2.21 33
8 02/01/2023 15:07:50 70.08, -50.29 87.15 02/01/2023 15:07:06 70.06, -50.32 87.15 1.58 44
9 02/04/2023 05:43:25 70.56, 90.10 86.90 02/04/2023 05:44:36 70.43, 90.81 86.74 29.57 71
10 02/04/2023 06:34:01 -70.14,-101.92 93.55 02/04/2023 06:34:09 -70.16,-101.95 93.53 2.77 8
11 02/04/2023 07:24:45 70.03, 65.55 86.33 02/04/2023 07:23:36 70.05, 65.54 86.36 1.97 69
12 02/06/2023 22:00:14 70.21,-153.57 85.72 02/06/2023 22:01:09 70.22,-153.63 85.72 2.48 55
13 02/06/2023 22:50:56 -70.10, 13.91 94.40 02/06/2023 22:50:39 -70.11, 13.85 94.39 2.35 17

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/26/2023
SNOs_Map_NPP_LANDSAT-9_20230126.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 01/26/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9