Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and TERRA Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 6/29/2025
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (TERRA) Time (TERRA) Lat,Lon (TERRA) SZA (TERRA ) Distance(km) Time Diff (sec)
1 06/30/2025 02:52:17 73.94, 126.16 51.08 06/30/2025 02:52:29 73.95, 126.15 51.09 1.66 12
2 06/30/2025 03:42:59 -73.86, -66.33 129.01 06/30/2025 03:41:51 -73.85, -66.41 129.00 2.91 68
3 07/02/2025 13:13:58 -73.97, 150.67 128.71 07/02/2025 13:14:13 -73.99, 150.74 128.70 3.27 15
4 07/02/2025 14:04:42 73.86, -41.76 51.17 07/02/2025 14:03:34 73.86, -41.87 51.20 3.31 68
5 07/04/2025 23:35:41 73.98, 175.22 51.52 07/04/2025 23:35:56 73.99, 175.27 51.52 2.36 15
6 07/05/2025 00:26:23 -73.89, -17.24 128.58 07/05/2025 00:25:18 -73.88, -17.30 128.57 1.71 65
7 07/07/2025 09:57:22 -74.00,-160.26 128.20 07/07/2025 09:57:40 -74.00,-160.18 128.21 2.32 18
8 07/07/2025 10:48:06 73.90, 7.29 51.69 07/07/2025 10:47:00 73.93, 7.32 51.73 2.91 66
9 07/09/2025 20:19:04 73.98,-135.63 52.07 07/09/2025 20:19:23 73.99,-135.70 52.07 2.35 19
10 07/09/2025 21:09:47 -73.92, 31.82 128.00 07/09/2025 21:08:44 -73.93, 31.84 127.98 0.80 63
11 07/12/2025 06:40:45 -73.99,-111.09 127.59 07/12/2025 06:41:06 -74.03,-111.09 127.57 3.72 21

Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 6/29/2025
SNOs_Map_NOAA-21_TERRA_20250629.jpg

Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 06/29/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and TERRA