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: 3/15/2025
Index Date Time (HIMAWARI-9) HIMAWARI-9 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 03/16/2025 04:00:46 -0.01, 140.76 0.15, 141.42 76.39 80
2 03/18/2025 16:03:48 0.01, 140.76 0.00, 140.69 7.97 80
3 03/21/2025 04:04:19 -0.01, 140.78 -0.19, 139.92 97.62 80
4 03/22/2025 03:48:13 -0.01, 140.78 0.81, 144.45 418.78 80
5 03/23/2025 16:10:00 0.01, 140.77 0.37, 139.19 180.09 80
6 03/24/2025 15:48:34 0.01, 140.77 -0.63, 143.72 336.49 80
7 03/26/2025 04:10:30 -0.02, 140.78 -0.52, 138.41 268.62 80
8 03/27/2025 03:54:25 -0.01, 140.77 0.49, 142.95 248.67 80
9 03/28/2025 16:16:11 0.02, 140.75 0.68, 137.68 348.59 80
10 03/29/2025 15:54:46 0.01, 140.74 -0.34, 142.21 168.90 80

Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 3/15/2025
SNOs_Map_HIMAWARI-9_NOAA-21_20250316.jpg

Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 03/15/2025 in txt file.

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