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: 1/9/2025
Index Date Time (HIMAWARI-9) HIMAWARI-9 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 01/10/2025 04:17:21 -0.02, 140.77 -0.88, 136.86 444.97 80
2 01/11/2025 04:01:14 -0.01, 140.77 0.11, 141.41 72.54 80
3 01/13/2025 16:04:12 0.01, 140.75 0.03, 140.68 7.48 80
4 01/16/2025 04:04:36 -0.01, 140.73 -0.21, 139.93 91.59 80
5 01/17/2025 03:48:30 -0.01, 140.72 0.85, 144.47 427.31 80
6 01/18/2025 16:10:14 0.00, 140.68 0.32, 139.21 168.02 80
7 01/19/2025 15:48:47 -0.00, 140.67 -0.68, 143.75 351.23 80
8 01/21/2025 04:10:39 -0.00, 140.65 -0.48, 138.46 249.50 80
9 01/22/2025 03:54:32 -0.00, 140.63 0.53, 143.00 270.35 80
10 01/23/2025 16:16:16 0.01, 140.58 0.63, 137.74 323.46 80

Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 1/9/2025
SNOs_Map_HIMAWARI-9_NOAA-21_20250110.jpg

Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 01/09/2025 in txt file.

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