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: 9/12/2024
Index Date Time (HIMAWARI-9) HIMAWARI-9 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 09/12/2024 16:09:42 -0.00, 140.75 0.33, 139.35 159.81 80
2 09/13/2024 15:48:21 -0.00, 140.74 -0.71, 143.87 356.30 80
3 09/15/2024 04:10:21 0.01, 140.73 -0.46, 138.55 247.86 80
4 09/16/2024 03:54:19 0.00, 140.72 0.54, 143.08 268.95 80
5 09/17/2024 16:16:10 -0.01, 140.70 0.66, 137.80 330.93 80
6 09/18/2024 15:54:48 -0.00, 140.69 -0.35, 142.33 186.37 80
7 09/20/2024 04:16:48 0.01, 140.66 -0.79, 137.00 416.36 80
8 09/21/2024 04:00:45 0.00, 140.64 0.23, 141.53 101.43 80
9 09/22/2024 16:22:36 -0.01, 140.61 0.99, 136.26 497.09 80
10 09/23/2024 16:01:13 -0.00, 140.60 -0.04, 140.78 20.75 80

Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 9/12/2024
SNOs_Map_HIMAWARI-9_NOAA-21_20240912.jpg

Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 09/12/2024 in txt file.

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