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: 3/16/2024
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 -0.02, 140.72 -0.20, 139.89 94.14 80
2 03/19/2024 03:46:58 -0.02, 140.70 0.81, 144.42 423.82 80
3 03/20/2024 16:08:47 0.02, 140.67 0.36, 139.15 173.67 80
4 03/21/2024 15:47:23 0.02, 140.65 -0.65, 143.67 344.67 80
5 03/23/2024 04:11:04 -0.03, 140.61 -0.52, 138.36 256.08 22
6 03/24/2024 03:50:38 -0.02, 140.58 0.51, 142.89 263.05 80
7 03/25/2024 16:15:08 0.03, 140.53 0.66, 137.61 332.55 80
8 03/26/2024 15:53:44 0.02, 140.50 -0.36, 142.14 186.73 80
9 03/28/2024 04:18:21 -0.03, 140.46 -0.85, 136.84 413.14 80
10 03/29/2024 03:56:58 -0.02, 140.43 0.18, 141.36 106.53 80

Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 3/16/2024
SNOs_Map_HIMAWARI-9_NOAA-21_20240316.jpg

Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 03/16/2024 in txt file.

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