Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between HIMAWARI-9 and NOAA-21 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 7/23/2024
Index Date Time (HIMAWARI-9) HIMAWARI-9 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 07/24/2024 04:04:07 0.01, 140.77 -0.20, 139.92 97.24 80
2 07/25/2024 03:48:03 0.01, 140.77 0.83, 144.45 419.24 80
3 07/26/2024 16:09:51 -0.01, 140.75 0.37, 139.18 179.79 80
4 07/27/2024 15:48:28 -0.01, 140.75 -0.67, 143.71 336.86 80
5 07/29/2024 04:10:25 0.01, 140.76 -0.53, 138.41 268.07 80
6 07/30/2024 03:54:22 0.01, 140.75 0.52, 142.93 249.08 80
7 07/31/2024 16:16:10 0.00, 140.73 0.67, 137.66 348.69 80
8 08/01/2024 15:54:46 0.00, 140.72 -0.33, 142.20 168.66 80
9 08/03/2024 04:16:43 -0.01, 140.71 -0.84, 136.89 435.16 80
10 08/04/2024 04:00:38 -0.01, 140.70 0.16, 141.43 82.95 80

Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 7/23/2024
SNOs_Map_HIMAWARI-9_NOAA-21_20240723.jpg

Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 07/23/2024 in txt file.

Historical Predications of SNOs between HIMAWARI-9 and NOAA-21