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: 6/2/2025
Index Date Time (HIMAWARI-9) HIMAWARI-9 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 06/03/2025 04:16:47 0.00, 140.76 -0.87, 136.87 443.93 80
2 06/04/2025 04:00:43 -0.00, 140.75 0.17, 141.39 73.29 80
3 06/06/2025 16:03:48 -0.00, 140.73 0.01, 140.65 9.61 80
4 06/09/2025 04:04:22 0.01, 140.69 -0.16, 139.86 94.49 80
5 06/10/2025 03:48:17 0.01, 140.68 0.82, 144.40 423.28 80
6 06/11/2025 16:10:07 -0.02, 140.66 0.32, 139.11 175.71 80
7 06/12/2025 15:48:42 -0.01, 140.64 -0.67, 143.65 342.18 80
8 06/14/2025 04:10:40 0.01, 140.61 -0.47, 138.33 259.57 80
9 06/15/2025 03:54:36 0.00, 140.59 0.52, 142.86 258.96 80

Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 6/2/2025
SNOs_Map_HIMAWARI-9_NOAA-21_20250603.jpg

Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 06/02/2025 in txt file.

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