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: 4/30/2024
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 05/02/2024 14:16:16 70.14, -37.78 54.42 05/02/2024 14:16:46 70.15, -37.84 54.43 2.90 30
2 05/02/2024 15:06:58 -70.05, 129.68 125.69 05/02/2024 15:06:16 -70.04, 129.63 125.69 2.16 42
3 05/05/2024 05:42:32 -70.58, -90.00 125.89 05/05/2024 05:43:43 -70.43, -89.20 126.06 34.04 71
4 05/05/2024 06:33:09 70.11, 78.05 53.61 05/05/2024 06:33:14 70.11, 77.97 53.61 2.84 5
5 05/05/2024 07:23:51 -70.01,-114.49 126.50 05/05/2024 07:22:44 -70.00,-114.55 126.51 2.64 67
6 05/07/2024 21:59:18 -70.19, 26.39 127.04 05/07/2024 22:00:14 -70.19, 26.33 127.04 2.23 56
7 05/07/2024 22:50:02 70.08,-166.14 52.85 05/07/2024 22:49:41 70.08,-166.18 52.85 1.66 21
8 05/07/2024 23:40:31 -69.30, 2.33 127.97 05/07/2024 23:39:23 -69.31, 0.41 127.91 75.75 68
9 05/10/2024 14:16:11 -70.17, 142.19 127.76 05/10/2024 14:16:40 -70.18, 142.21 127.75 1.56 29
10 05/10/2024 15:06:55 70.07, -50.35 52.13 05/10/2024 15:06:07 70.07, -50.31 52.13 1.65 48
11 05/13/2024 05:42:23 70.38, 90.32 51.80 05/13/2024 05:43:33 70.35, 90.71 51.75 14.64 70
12 05/13/2024 06:33:02 -70.11,-101.94 128.49 05/13/2024 06:33:05 -70.14,-101.97 128.47 2.81 3
13 05/13/2024 07:23:45 69.97, 65.59 51.35 05/13/2024 07:22:33 69.96, 65.43 51.36 6.01 72

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/30/2024
SNOs_Map_NPP_LANDSAT-9_20240430.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 04/30/2024 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9