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: 9/17/2025
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 09/19/2025 13:31:53 74.31, -34.84 73.24 09/19/2025 13:32:43 74.28, -34.88 73.20 2.97 50
2 09/19/2025 14:22:36 -74.24, 132.64 106.83 09/19/2025 14:22:05 -74.23, 132.66 106.84 1.49 31
3 09/21/2025 23:53:31 -74.30, -10.23 105.84 09/21/2025 23:54:17 -74.29, -10.29 105.86 2.10 46
4 09/22/2025 00:44:15 74.23, 157.26 74.10 09/22/2025 00:43:35 74.25, 157.28 74.12 2.10 40
5 09/24/2025 10:15:10 74.29, 14.38 75.09 09/24/2025 10:15:47 74.30, 14.28 75.09 2.88 37
6 09/24/2025 11:05:53 -74.22,-178.13 104.98 09/24/2025 11:05:09 -74.24,-178.17 104.95 2.73 44
7 09/26/2025 20:36:49 -74.34, 38.86 103.93 09/26/2025 20:37:20 -74.33, 38.92 103.95 2.10 31
8 09/26/2025 21:27:32 74.22,-153.54 75.96 09/26/2025 21:26:39 74.23,-153.63 75.98 2.97 53
9 09/29/2025 06:58:28 74.35, 63.43 77.02 09/29/2025 06:58:49 74.35, 63.54 77.01 3.11 21
10 09/29/2025 07:49:11 -74.27,-129.06 103.06 09/29/2025 07:48:12 -74.24,-129.04 103.08 3.21 59
11 10/01/2025 17:20:06 -74.35, 88.03 102.05 10/01/2025 17:20:22 -74.34, 88.09 102.06 2.00 16

Figure of NOAA-20 and TERRA satellite orbits during SNOs since TLE Epoch: 9/17/2025
SNOs_Map_NOAA-20_TERRA_20250918.jpg

Download SNOs between NOAA-20 and TERRA since TLE EPOCH: 09/17/2025 in txt file.

Historial Predications of SNOs between NOAA-20 and TERRA