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: 1/18/2025
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 01/22/2025 03:23:00 -71.58, -56.61 88.69 01/22/2025 03:21:49 -71.54, -58.01 88.65 49.47 71
2 01/22/2025 04:13:50 71.78, 110.34 91.52 01/22/2025 04:12:37 71.75, 109.67 91.54 23.38 73
3 01/22/2025 05:04:37 -71.95, -82.68 88.30 01/22/2025 05:03:38 -71.94, -82.73 88.30 2.51 59
4 01/22/2025 05:55:23 71.95, 84.65 91.68 01/22/2025 05:54:30 71.95, 84.57 91.70 2.60 53
5 01/22/2025 06:46:07 -71.97,-108.08 88.30 01/22/2025 06:45:34 -71.99,-108.12 88.28 2.37 33
6 01/22/2025 07:36:54 72.01, 59.15 91.74 01/22/2025 07:36:26 71.99, 59.18 91.73 2.18 28
7 01/22/2025 08:27:38 -72.04,-133.58 88.25 01/22/2025 08:27:30 -72.03,-133.52 88.25 2.18 8
8 01/22/2025 09:18:24 72.03, 33.74 91.74 01/22/2025 09:18:22 72.04, 33.79 91.75 2.15 2
9 01/22/2025 10:09:08 -72.05,-158.98 88.25 01/22/2025 10:09:27 -72.03,-159.01 88.27 2.57 19
10 01/22/2025 10:59:54 72.04, 8.34 91.74 01/22/2025 11:00:19 72.04, 8.29 91.73 1.76 25
11 01/22/2025 11:50:38 -72.07, 175.62 88.25 01/22/2025 11:51:23 -72.08, 175.60 88.25 1.27 45
12 01/22/2025 12:41:24 72.06, -17.06 91.74 01/22/2025 12:42:15 72.08, -17.10 91.76 3.31 51
13 01/22/2025 13:32:09 -72.13, 150.12 88.19 01/22/2025 13:33:19 -72.12, 150.21 88.22 3.31 70
14 01/22/2025 14:22:57 72.23, -42.76 91.91 01/22/2025 14:24:10 72.18, -42.39 91.83 13.51 73

Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 1/18/2025
SNOs_Map_NOAA-21_NOAA-19_20250118.jpg

Download SNOs between NOAA-21 and NOAA-19 since TLE EPOCH: 01/18/2025 in txt file.

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