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: 2/14/2025
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, 140.79 -0.15, 139.96 94.06 80
2 02/18/2025 03:48:13 0.01, 140.79 0.83, 144.49 421.59 80
3 02/19/2025 16:10:01 -0.01, 140.79 0.35, 139.22 179.04 80
4 02/20/2025 15:48:37 -0.00, 140.79 -0.64, 143.75 336.74 80
5 02/22/2025 04:10:35 -0.00, 140.80 -0.51, 138.43 269.49 80
6 02/23/2025 03:54:30 -0.00, 140.80 0.48, 142.96 246.56 80
7 02/24/2025 16:16:19 0.00, 140.79 0.69, 137.69 353.31 80
8 02/25/2025 15:54:54 0.00, 140.79 -0.31, 142.22 162.93 80
9 02/27/2025 04:16:52 0.00, 140.79 -0.89, 136.91 442.60 80
10 02/28/2025 04:00:48 0.00, 140.78 0.17, 141.43 74.38 80

Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 2/14/2025
SNOs_Map_HIMAWARI-9_NOAA-21_20250215.jpg

Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 02/14/2025 in txt file.

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