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: 7/17/2024
Index Date Time (HIMAWARI-9) HIMAWARI-9 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 07/18/2024 04:16:33 -0.01, 140.75 -0.87, 136.90 438.80 80
2 07/19/2024 04:00:29 0.02, 140.74 0.19, 141.42 77.54 80
3 07/21/2024 16:03:33 -0.02, 140.71 -0.01, 140.69 2.72 80
4 07/24/2024 04:04:06 0.01, 140.70 -0.16, 139.92 89.21 80
5 07/25/2024 03:48:02 0.00, 140.68 0.85, 144.45 429.05 80
6 07/26/2024 16:09:50 -0.00, 140.64 0.31, 139.18 166.51 80
7 07/27/2024 15:48:25 -0.00, 140.63 -0.70, 143.71 351.85 80
8 07/29/2024 04:10:22 0.01, 140.62 -0.51, 138.42 251.37 80
9 07/30/2024 03:54:17 0.01, 140.60 0.51, 142.95 267.48 80
10 07/31/2024 16:16:06 -0.00, 140.54 0.64, 137.68 326.96 80

Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 7/17/2024
SNOs_Map_HIMAWARI-9_NOAA-21_20240718.jpg

Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 07/17/2024 in txt file.

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