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: 3/18/2025
Index Date Time (HIMAWARI-9) HIMAWARI-9 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 03/21/2025 04:04:18 -0.02, 140.78 -0.21, 139.92 97.26 80
2 03/22/2025 03:48:13 -0.01, 140.78 0.79, 144.46 419.14 80
3 03/23/2025 16:09:59 0.02, 140.77 0.38, 139.19 180.33 80
4 03/24/2025 15:48:34 0.02, 140.77 -0.63, 143.73 336.26 80
5 03/26/2025 04:10:29 -0.02, 140.78 -0.57, 138.43 268.20 80
6 03/27/2025 03:54:23 -0.02, 140.77 0.44, 142.96 249.12 80
7 03/28/2025 16:16:10 0.03, 140.75 0.72, 137.69 348.68 80
8 03/29/2025 15:54:44 0.02, 140.74 -0.30, 142.23 168.80 80
9 03/31/2025 04:16:39 -0.02, 140.74 -0.86, 136.92 434.67 80
10 04/01/2025 04:00:34 -0.02, 140.73 0.17, 141.45 83.26 80

Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 3/18/2025
SNOs_Map_HIMAWARI-9_NOAA-21_20250319.jpg

Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 03/18/2025 in txt file.

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