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: 3/6/2025
Index Date Time (HIMAWARI-9) HIMAWARI-9 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 03/07/2025 16:10:04 0.02, 140.76 0.38, 139.19 179.34 80
2 03/08/2025 15:48:40 0.02, 140.76 -0.64, 143.72 337.00 80
3 03/10/2025 04:10:36 -0.03, 140.76 -0.58, 138.42 268.44 80
4 03/11/2025 03:54:32 -0.03, 140.76 0.45, 142.94 248.77 80
5 03/12/2025 16:16:19 0.03, 140.73 0.71, 137.67 348.29 80
6 03/13/2025 15:54:55 0.03, 140.72 -0.32, 142.20 169.35 80
7 03/15/2025 04:19:31 -0.03, 140.71 -0.89, 136.89 434.39 80
8 03/16/2025 03:58:06 -0.03, 140.69 0.15, 141.42 83.87 80
9 03/18/2025 16:01:08 0.03, 140.63 0.02, 140.69 6.69 80

Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 3/6/2025
SNOs_Map_HIMAWARI-9_NOAA-21_20250307.jpg

Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 03/06/2025 in txt file.

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