Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-20 and TERRA Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 7/19/2025
Index Date (NOAA-20) Time (NOAA-20) Lat,Lon (NOAA-20) SZA (NOAA-20 ) Date (TERRA) Time (TERRA) Lat,Lon (TERRA) SZA (TERRA ) Distance(km) Time Diff (sec)
1 07/20/2025 19:20:58 73.98,-121.40 53.85 07/20/2025 19:21:41 74.00,-121.46 53.86 3.28 43
2 07/20/2025 20:11:41 -73.95, 46.00 126.18 07/20/2025 20:11:02 -73.92, 46.03 126.20 3.18 39
3 07/23/2025 05:42:38 -74.00, -96.85 125.65 07/23/2025 05:43:23 -74.00, -96.94 125.66 2.66 45
4 07/23/2025 06:33:23 73.94, 70.60 54.30 07/23/2025 06:32:43 73.94, 70.60 54.31 0.19 40
5 07/25/2025 16:04:21 74.04, -72.39 54.92 07/25/2025 16:05:03 74.05, -72.29 54.91 3.16 42
6 07/25/2025 16:55:03 -73.96, 95.14 125.17 07/25/2025 16:54:24 -73.98, 95.21 125.14 3.32 39
7 07/28/2025 02:26:01 -74.06, -47.84 124.51 07/28/2025 02:26:45 -74.03, -47.81 124.56 3.39 44
8 07/28/2025 03:16:45 73.96, 119.72 55.38 07/28/2025 03:16:05 73.96, 119.71 55.40 0.57 40
9 07/30/2025 12:47:43 74.07, -23.28 56.08 07/30/2025 12:48:25 74.05, -23.23 56.04 2.55 42
10 07/30/2025 13:38:25 -73.97, 144.26 124.02 07/30/2025 13:37:46 -73.99, 144.29 124.01 1.48 39
11 08/01/2025 23:09:23 -74.08, 1.26 123.30 08/01/2025 23:10:06 -74.06, 1.33 123.34 2.91 43
12 08/02/2025 00:00:06 73.99, 168.81 56.60 08/01/2025 23:59:25 73.99, 168.83 56.61 0.74 41

Figure of NOAA-20 and TERRA satellite orbits during SNOs since TLE Epoch: 7/19/2025
SNOs_Map_NOAA-20_TERRA_20250719.jpg

Download SNOs between NOAA-20 and TERRA since TLE EPOCH: 07/19/2025 in txt file.

Historial Predications of SNOs between NOAA-20 and TERRA