Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and NOAA-19 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 5/3/2025
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (NOAA-19) Time (NOAA-19) Lat,Lon (NOAA-19) SZA (NOAA-19 ) Distance(km) Time Diff (sec)
1 05/14/2025 13:31:24 -70.93, 152.21 127.90 05/14/2025 13:30:12 -70.89, 151.06 127.89 42.14 72
2 05/14/2025 14:22:15 71.19, -40.92 52.37 05/14/2025 14:21:01 71.15, -41.20 52.35 10.64 74
3 05/14/2025 15:13:01 -71.29, 126.21 127.53 05/14/2025 15:12:01 -71.27, 126.25 127.55 3.14 60
4 05/14/2025 16:03:47 71.29, -66.48 52.47 05/14/2025 16:02:55 71.28, -66.45 52.46 1.71 52
5 05/14/2025 16:54:31 -71.30, 100.83 127.54 05/14/2025 16:53:57 -71.30, 100.82 127.54 0.51 34
6 05/14/2025 17:45:17 71.30, -91.86 52.45 05/14/2025 17:44:51 71.31, -91.89 52.47 1.72 26
7 05/14/2025 18:36:02 -71.35, 75.36 127.51 05/14/2025 18:35:53 -71.32, 75.38 127.53 3.00 9
8 05/14/2025 19:26:48 71.35,-117.33 52.49 05/14/2025 19:26:47 71.33,-117.33 52.47 1.72 1
9 05/14/2025 20:17:32 -71.35, 49.99 127.52 05/14/2025 20:17:49 -71.35, 49.95 127.52 1.43 17
10 05/14/2025 21:08:18 71.35,-142.71 52.47 05/14/2025 21:08:43 71.36,-142.76 52.48 2.27 25
11 05/14/2025 21:59:03 -71.40, 24.52 127.48 05/14/2025 21:59:45 -71.38, 24.51 127.51 3.16 42
12 05/14/2025 22:49:49 71.40,-168.17 52.51 05/14/2025 22:50:39 71.39,-168.20 52.49 2.29 50
13 05/14/2025 23:40:33 -71.41, -0.86 127.50 05/14/2025 23:41:41 -71.40, -0.93 127.51 2.34 68
14 05/15/2025 00:31:21 71.51, 166.26 52.61 05/15/2025 00:32:34 71.46, 166.46 52.55 8.64 73
15 05/15/2025 01:22:17 -72.13, -27.56 126.75 05/15/2025 01:23:24 -72.09, -25.10 126.87 84.23 67

Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 5/3/2025
SNOs_Map_NOAA-21_NOAA-19_20250503.jpg

Download SNOs between NOAA-21 and NOAA-19 since TLE EPOCH: 05/03/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and NOAA-19