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: 3/17/2024
Index Date Time (HIMAWARI-9) HIMAWARI-9 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 03/18/2024 04:03:01 -0.03, 140.78 -0.21, 139.89 100.80 80
2 03/19/2024 03:46:58 -0.03, 140.78 0.81, 144.42 415.44 80
3 03/20/2024 16:08:47 0.03, 140.76 0.37, 139.15 183.69 80
4 03/21/2024 15:47:23 0.03, 140.76 -0.65, 143.67 332.99 80
5 03/23/2024 04:12:01 -0.04, 140.75 -0.58, 138.38 271.46 80
6 03/24/2024 03:50:37 -0.03, 140.74 0.44, 142.90 245.90 80
7 03/25/2024 16:15:06 0.04, 140.71 0.73, 137.63 351.39 80
8 03/26/2024 15:53:43 0.03, 140.70 -0.29, 142.15 166.15 80
9 03/28/2024 04:18:20 -0.04, 140.68 -0.92, 136.85 437.35 80
10 03/29/2024 03:56:57 -0.03, 140.67 0.11, 141.38 80.57 80

Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 3/17/2024
SNOs_Map_HIMAWARI-9_NOAA-21_20240317.jpg

Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 03/17/2024 in txt file.

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