Simultaneous Nadir Overpasses (SNOs) Predictions

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

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 2/20/2025
Index Date (NOAA-19) Time (NOAA-19) Lat,Lon (NOAA-19) SZA (NOAA-19 ) Date (NPP) Time (NPP) Lat,Lon (NPP) SZA (NPP ) Distance(km) Time Diff (sec)
1 02/27/2025 03:22:05 70.91, 121.59 79.43 02/27/2025 03:23:11 70.94, 124.28 79.30 97.59 66
2 02/27/2025 04:12:54 -71.49, -70.11 100.07 02/27/2025 04:14:06 -71.53, -69.42 100.09 24.73 72
3 02/27/2025 05:03:46 71.72, 97.58 80.12 02/27/2025 05:04:56 71.73, 97.52 80.12 2.40 70
4 02/27/2025 05:54:46 -71.73, -95.14 99.88 02/27/2025 05:55:40 -71.74, -95.19 99.88 1.79 54
5 02/27/2025 06:45:42 71.76, 72.17 80.13 02/27/2025 06:46:26 71.74, 72.13 80.10 2.96 44
6 02/27/2025 07:36:42 -71.77,-120.55 99.87 02/27/2025 07:37:10 -71.75,-120.57 99.90 3.00 28
7 02/27/2025 08:27:39 71.75, 46.67 80.10 02/27/2025 08:27:56 71.74, 46.74 80.09 2.51 17
8 02/27/2025 09:18:39 -71.76,-146.05 99.91 02/27/2025 09:18:40 -71.76,-145.96 99.92 3.13 1
9 02/27/2025 10:09:35 71.79, 21.27 80.11 02/27/2025 10:09:27 71.80, 21.26 80.12 1.57 8
10 02/27/2025 11:00:35 -71.80,-171.46 99.90 02/27/2025 11:00:11 -71.82,-171.45 99.88 1.46 24
11 02/27/2025 11:51:31 71.83, -4.14 80.12 02/27/2025 11:50:57 71.81, -4.13 80.11 2.12 34
12 02/27/2025 12:42:31 -71.84, 163.13 99.89 02/27/2025 12:41:41 -71.82, 163.16 99.90 2.35 50
13 02/27/2025 13:33:27 71.87, -29.55 80.13 02/27/2025 13:32:28 71.87, -29.62 80.15 2.48 59
14 02/27/2025 14:24:27 -71.88, 137.73 99.88 02/27/2025 14:23:12 -71.88, 137.68 99.86 1.73 75
15 02/27/2025 15:15:16 72.27, -54.25 80.46 02/27/2025 15:14:05 72.24, -55.69 80.52 49.16 71

Figure of NOAA-19 and NPP satellite orbits during SNOs since TLE Epoch: 2/20/2025
SNOs_Map_NOAA-19_NPP_20250220.jpg

Download SNOs between NOAA-19 and NPP since TLE EPOCH: 02/20/2025 in txt file.

Historial Predications of SNOs between NOAA-19 and NPP