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: 3/10/2025
Index Date Time (HIMAWARI-9) HIMAWARI-9 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 03/11/2025 03:54:32 -0.04, 140.76 0.44, 142.95 248.64 80
2 03/12/2025 16:16:19 0.04, 140.74 0.72, 137.67 349.31 80
3 03/13/2025 15:54:54 0.04, 140.73 -0.32, 142.20 168.12 80
4 03/15/2025 04:16:51 -0.04, 140.72 -0.89, 136.90 435.47 80
5 03/16/2025 04:00:46 -0.04, 140.70 0.15, 141.42 82.62 80
6 03/18/2025 16:01:08 0.04, 140.65 0.01, 140.69 4.79 80
7 03/21/2025 04:04:19 -0.04, 140.62 -0.21, 139.92 80.04 80
8 03/22/2025 03:48:14 -0.05, 140.60 0.84, 144.44 438.62 80
9 03/23/2025 16:10:01 0.05, 140.56 0.36, 139.18 156.75 80
10 03/24/2025 15:48:35 0.05, 140.54 -0.63, 143.72 362.06 80

Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 3/10/2025
SNOs_Map_HIMAWARI-9_NOAA-21_20250311.jpg

Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 03/10/2025 in txt file.

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