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: 3/21/2025
Index Date Time (HIMAWARI-9) HIMAWARI-9 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 03/22/2025 03:48:12 -0.02, 140.77 0.78, 144.46 419.72 80
2 03/23/2025 16:09:59 0.03, 140.77 0.39, 139.19 180.09 80
3 03/24/2025 15:48:33 0.03, 140.77 -0.62, 143.73 336.62 80
4 03/26/2025 04:10:29 -0.03, 140.77 -0.57, 138.43 267.18 80
5 03/27/2025 03:54:23 -0.03, 140.76 0.45, 142.96 250.25 80
6 03/28/2025 16:16:09 0.03, 140.75 0.71, 137.69 347.86 80
7 03/29/2025 15:54:44 0.03, 140.74 -0.32, 142.23 169.73 80
8 03/31/2025 04:16:38 -0.03, 140.73 -0.90, 136.93 433.11 80
9 04/01/2025 04:00:33 -0.03, 140.72 0.13, 141.46 84.91 80
10 04/03/2025 16:00:53 0.03, 140.68 0.02, 140.74 5.93 80

Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 3/21/2025
SNOs_Map_HIMAWARI-9_NOAA-21_20250322.jpg

Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 03/21/2025 in txt file.

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