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: 6/14/2024
Index Date Time (HIMAWARI-9) HIMAWARI-9 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 06/16/2024 04:16:02 0.00, 140.77 -0.88, 136.94 436.42 80
2 06/17/2024 04:00:00 0.00, 140.76 0.19, 141.46 80.13 80
3 06/19/2024 16:03:06 -0.01, 140.75 -0.00, 140.72 3.38 80
4 06/22/2024 04:03:40 0.00, 140.73 -0.18, 139.94 90.52 80
5 06/23/2024 03:47:37 0.00, 140.73 0.83, 144.47 426.46 80
6 06/24/2024 16:09:26 -0.00, 140.71 0.35, 139.20 172.68 80
7 06/25/2024 15:48:03 -0.00, 140.70 -0.67, 143.73 344.50 80
8 06/27/2024 04:10:01 0.01, 140.68 -0.51, 138.42 258.47 80
9 06/28/2024 03:53:58 0.01, 140.67 0.51, 142.94 259.49 80

Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 6/14/2024
SNOs_Map_HIMAWARI-9_NOAA-21_20240615.jpg

Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 06/14/2024 in txt file.

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