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: 7/1/2025
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 07/02/2025 07:17:32 70.26, 66.69 47.24 07/02/2025 07:16:24 70.23, 64.44 47.33 84.87 68
2 07/02/2025 08:08:27 -70.87,-126.97 132.12 07/02/2025 08:07:13 -70.84,-127.31 132.13 12.96 74
3 07/02/2025 08:59:15 70.95, 40.21 47.97 07/02/2025 08:58:06 70.98, 40.20 48.01 3.63 69
4 07/02/2025 09:49:59 -70.98,-152.53 132.00 07/02/2025 09:49:07 -70.96,-152.58 132.01 2.79 52
5 07/02/2025 10:40:46 71.00, 14.74 48.03 07/02/2025 10:40:02 71.00, 14.76 48.04 0.72 44
6 07/02/2025 11:31:30 -71.03,-178.00 131.93 07/02/2025 11:31:02 -71.03,-177.94 131.93 2.13 28
7 07/02/2025 12:22:16 71.01, -10.64 48.04 07/02/2025 12:21:58 71.02, -10.69 48.06 2.48 18
8 07/02/2025 13:13:00 -71.04, 156.62 131.93 07/02/2025 13:12:58 -71.05, 156.62 131.91 1.85 2
9 07/02/2025 14:03:47 71.06, -36.11 48.11 07/02/2025 14:03:54 71.04, -36.13 48.09 2.06 7
10 07/02/2025 14:54:31 -71.09, 131.15 131.86 07/02/2025 14:54:54 -71.07, 131.17 131.88 2.06 23
11 07/02/2025 15:45:17 71.07, -61.49 48.12 07/02/2025 15:45:50 71.07, -61.58 48.12 3.07 33
12 07/02/2025 16:36:01 -71.10, 105.77 131.85 07/02/2025 16:36:50 -71.10, 105.72 131.86 1.83 49
13 07/02/2025 17:26:48 71.12, -86.96 48.18 07/02/2025 17:27:45 71.14, -86.93 48.19 2.32 57
14 07/02/2025 18:17:32 -71.15, 80.30 131.79 07/02/2025 18:18:45 -71.17, 80.37 131.79 2.94 73
15 07/02/2025 19:08:24 71.44,-112.89 48.53 07/02/2025 19:09:36 71.42,-111.91 48.45 34.57 72

Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 7/1/2025
SNOs_Map_NOAA-21_NOAA-19_20250701.jpg

Download SNOs between NOAA-21 and NOAA-19 since TLE EPOCH: 07/01/2025 in txt file.

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