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: 2/15/2025
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 02/15/2025 23:41:30 73.38, 175.23 86.02 02/15/2025 23:42:01 73.37, 175.23 86.00 1.10 31
2 02/16/2025 00:32:12 -73.32, -17.30 94.07 02/16/2025 00:31:24 -73.29, -17.28 94.09 3.34 48
3 02/18/2025 10:03:12 -73.45,-160.33 94.76 02/18/2025 10:04:21 -73.45,-160.24 94.78 3.08 69
4 02/18/2025 10:53:57 73.37, 7.14 85.14 02/18/2025 10:53:41 73.35, 7.23 85.12 3.30 16
5 02/20/2025 21:15:38 -73.39, 31.68 95.71 02/20/2025 21:16:01 -73.40, 31.69 95.72 0.76 23
6 02/20/2025 22:06:23 73.32,-160.85 84.20 02/20/2025 22:05:21 73.30,-160.83 84.19 2.09 62
7 02/23/2025 07:37:21 73.42, 56.17 83.44 02/23/2025 07:38:16 73.45, 56.18 83.45 3.00 55
8 02/23/2025 08:28:03 -73.34,-136.33 96.67 02/23/2025 08:27:39 -73.35,-136.35 96.65 1.38 24
9 02/25/2025 17:59:17 -74.19, 78.91 96.61 02/25/2025 18:00:23 -74.09, 81.92 96.91 92.02 66
10 02/25/2025 18:49:47 73.39,-111.87 82.48 02/25/2025 18:49:55 73.37,-111.93 82.46 2.86 8
11 02/25/2025 19:40:29 -73.30, 55.64 97.63 02/25/2025 19:39:17 -73.32, 55.64 97.60 2.20 72
12 02/28/2025 05:11:28 -73.42, -87.36 98.41 02/28/2025 05:12:12 -73.45, -87.39 98.39 3.12 44
13 02/28/2025 06:02:13 73.36, 80.08 81.52 02/28/2025 06:01:32 73.36, 80.10 81.52 0.95 41

Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 2/15/2025
SNOs_Map_NOAA-21_TERRA_20250215.jpg

Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 02/15/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and TERRA