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: 6/15/2025
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 06/15/2025 11:51:29 -74.37, 170.32 128.66 06/15/2025 11:52:38 -74.22, 171.98 128.92 52.60 69
2 06/15/2025 12:42:05 73.85, -21.08 50.76 06/15/2025 12:42:03 73.85, -21.16 50.77 2.49 2
3 06/15/2025 13:32:40 -73.43, 147.21 129.71 06/15/2025 13:31:30 -73.52, 145.80 129.52 45.33 70
4 06/17/2025 22:13:13 74.39,-165.17 51.31 06/17/2025 22:14:21 74.28,-163.37 51.07 55.42 68
5 06/17/2025 23:03:46 -73.88, 3.43 129.28 06/17/2025 23:03:49 -73.89, 3.44 129.26 1.87 3
6 06/17/2025 23:54:24 73.45, 171.73 50.25 06/17/2025 23:53:14 73.52, 170.32 50.42 45.12 70
7 06/20/2025 08:34:57 -74.56,-141.04 128.52 06/20/2025 08:36:04 -74.46,-138.46 128.80 77.66 67
8 06/20/2025 09:25:30 73.91, 27.93 50.74 06/20/2025 09:25:33 73.88, 27.93 50.71 2.76 3
9 06/20/2025 10:16:09 -73.68,-164.22 129.52 06/20/2025 10:14:56 -73.75,-164.68 129.40 16.45 73
10 06/22/2025 18:56:41 74.60,-116.58 51.54 06/22/2025 18:57:47 74.48,-113.87 51.24 81.22 66
11 06/22/2025 19:47:11 -73.93, 52.44 129.22 06/22/2025 19:47:18 -73.94, 52.56 129.23 3.53 7
12 06/22/2025 20:37:52 73.67,-139.62 50.49 06/22/2025 20:36:40 73.72,-140.22 50.60 19.81 72
13 06/25/2025 06:08:54 73.93, 77.02 50.84 06/25/2025 06:09:01 73.95, 77.10 50.85 3.18 7
14 06/25/2025 06:59:36 -73.85,-115.46 129.26 06/25/2025 06:58:23 -73.87,-115.41 129.23 2.66 73
15 06/27/2025 16:30:35 -73.96, 101.54 129.04 06/27/2025 16:30:46 -73.96, 101.65 129.04 3.60 11

Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 6/15/2025
SNOs_Map_NOAA-21_TERRA_20250615.jpg

Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 06/15/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and TERRA