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: 6/16/2024
Index Date Time (HIMAWARI-9) HIMAWARI-9 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 06/17/2024 04:00:00 -0.00, 140.76 0.18, 141.46 80.53 80
2 06/19/2024 16:03:05 0.01, 140.75 0.00, 140.72 3.18 80
3 06/22/2024 04:03:40 -0.01, 140.73 -0.18, 139.94 89.95 80
4 06/23/2024 03:47:37 -0.01, 140.72 0.83, 144.47 427.03 80
5 06/24/2024 16:09:26 0.00, 140.71 0.34, 139.20 172.21 80
6 06/25/2024 15:48:03 -0.00, 140.70 -0.67, 143.73 344.96 80
7 06/27/2024 04:10:01 0.00, 140.68 -0.51, 138.42 257.91 80
8 06/28/2024 03:53:57 0.01, 140.66 0.51, 142.95 260.07 80
9 06/29/2024 16:15:47 -0.01, 140.63 0.65, 137.67 337.18 80
10 06/30/2024 15:54:23 -0.00, 140.61 -0.37, 142.20 181.00 80

Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 6/16/2024
SNOs_Map_HIMAWARI-9_NOAA-21_20240617.jpg

Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 06/16/2024 in txt file.

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