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: 6/12/2025
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 06/13/2025 01:29:44 74.11, 146.40 51.16 06/13/2025 01:30:56 74.00, 146.98 51.00 21.35 72
2 06/13/2025 02:20:22 -73.84, -45.63 129.15 06/13/2025 02:20:20 -73.83, -45.72 129.15 2.86 2
3 06/13/2025 03:10:56 73.21, 123.12 50.16 06/13/2025 03:09:49 73.24, 120.73 50.35 76.62 67
4 06/15/2025 11:51:29 -74.37, 170.31 128.65 06/15/2025 11:52:38 -74.23, 172.00 128.91 53.22 69
5 06/15/2025 12:42:05 73.86, -21.10 50.77 06/15/2025 12:42:03 73.85, -21.16 50.77 1.80 2
6 06/15/2025 13:32:40 -73.44, 147.20 129.70 06/15/2025 13:31:30 -73.52, 145.81 129.52 44.68 70
7 06/17/2025 22:13:13 74.39,-165.19 51.31 06/17/2025 22:14:21 74.29,-163.34 51.08 56.44 68
8 06/17/2025 23:03:46 -73.88, 3.43 129.28 06/17/2025 23:03:50 -73.86, 3.36 129.29 2.98 4
9 06/17/2025 23:54:24 73.46, 171.72 50.26 06/17/2025 23:53:14 73.53, 170.35 50.43 44.04 70
10 06/20/2025 08:34:58 -74.61,-141.17 128.47 06/20/2025 08:36:04 -74.49,-138.39 128.78 83.47 66
11 06/20/2025 09:25:30 73.91, 27.93 50.74 06/20/2025 09:25:33 73.91, 27.99 50.73 1.83 3
12 06/20/2025 10:16:09 -73.68,-164.21 129.52 06/20/2025 10:14:57 -73.73,-164.73 129.42 17.03 72
13 06/22/2025 18:56:41 74.60,-116.57 51.54 06/22/2025 18:57:47 74.53,-113.77 51.28 83.23 66
14 06/22/2025 19:47:11 -73.93, 52.46 129.23 06/22/2025 19:47:19 -73.93, 52.55 129.23 2.83 8
15 06/22/2025 20:37:53 73.72,-139.73 50.54 06/22/2025 20:36:40 73.77,-140.13 50.64 13.85 73
16 06/25/2025 06:08:54 73.92, 77.04 50.83 06/25/2025 06:09:03 73.91, 77.02 50.81 1.60 9

Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 6/12/2025
SNOs_Map_NOAA-21_TERRA_20250612.jpg

Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 06/12/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and TERRA