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: 3/26/2025
Index Date Time (HIMAWARI-9) HIMAWARI-9 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 03/27/2025 03:54:23 -0.02, 140.76 0.45, 142.96 250.31 80
2 03/28/2025 16:16:09 0.02, 140.75 0.70, 137.69 348.00 80
3 03/29/2025 15:54:44 0.02, 140.74 -0.33, 142.23 169.58 80
4 03/31/2025 04:16:38 -0.02, 140.73 -0.89, 136.93 433.11 80
5 04/01/2025 04:00:33 -0.02, 140.72 0.14, 141.46 84.89 80
6 04/03/2025 16:00:53 0.02, 140.69 0.01, 140.74 5.67 80
7 04/06/2025 04:04:01 -0.02, 140.65 -0.15, 139.97 77.41 80
8 04/07/2025 03:47:55 -0.02, 140.63 0.84, 144.51 441.82 80
9 04/08/2025 16:09:40 0.03, 140.59 0.34, 139.25 153.30 80
10 04/09/2025 15:48:15 0.02, 140.57 -0.72, 143.78 366.36 80

Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 3/26/2025
SNOs_Map_HIMAWARI-9_NOAA-21_20250327.jpg

Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 03/26/2025 in txt file.

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