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: 2/16/2025
Index Date Time (HIMAWARI-9) HIMAWARI-9 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 02/17/2025 04:04:17 0.01, 140.78 -0.16, 139.96 93.23 80
2 02/18/2025 03:48:12 0.01, 140.78 0.82, 144.49 422.55 80
3 02/19/2025 16:10:01 -0.01, 140.78 0.36, 139.22 178.38 80
4 02/20/2025 15:48:37 -0.01, 140.78 -0.69, 143.74 337.55 80
5 02/22/2025 04:10:35 -0.00, 140.79 -0.52, 138.43 267.88 80
6 02/23/2025 03:54:30 -0.00, 140.78 0.47, 142.97 248.37 80
7 02/24/2025 16:16:18 0.01, 140.78 0.69, 137.69 351.65 80
8 02/25/2025 15:54:54 0.00, 140.77 -0.31, 142.22 164.79 80
9 02/27/2025 04:16:51 -0.00, 140.77 -0.88, 136.91 439.91 80
10 02/28/2025 04:00:47 -0.00, 140.76 0.12, 141.44 77.25 80
11 03/02/2025 16:03:51 0.00, 140.73 0.01, 140.69 3.83 80

Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 2/16/2025
SNOs_Map_HIMAWARI-9_NOAA-21_20250217.jpg

Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 02/16/2025 in txt file.

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