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: 2/25/2025
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 04:12:53 -71.50, -70.10 100.06 02/27/2025 04:14:06 -71.56, -69.48 100.05 22.56 73
2 02/27/2025 05:03:46 71.68, 97.51 80.09 02/27/2025 05:04:55 71.70, 97.56 80.10 3.00 69
3 02/27/2025 05:54:45 -71.74, -95.12 99.87 02/27/2025 05:55:39 -71.72, -95.15 99.90 2.71 54
4 02/27/2025 06:45:42 71.72, 72.10 80.10 02/27/2025 06:46:25 71.71, 72.17 80.08 2.69 43
5 02/27/2025 07:36:42 -71.73,-120.63 99.91 02/27/2025 07:37:09 -71.73,-120.54 99.92 2.93 27
6 02/27/2025 08:27:38 71.76, 46.70 80.11 02/27/2025 08:27:56 71.77, 46.69 80.12 0.98 18
7 02/27/2025 09:18:38 -71.77,-146.03 99.90 02/27/2025 09:18:40 -71.79,-146.03 99.88 1.89 2
8 02/27/2025 10:09:34 71.80, 21.29 80.12 02/27/2025 10:09:26 71.78, 21.30 80.10 2.69 8
9 02/27/2025 11:00:34 -71.81,-171.44 99.89 02/27/2025 11:00:10 -71.80,-171.42 99.90 1.87 24
10 02/27/2025 11:51:30 71.84, -4.12 80.13 02/27/2025 11:50:57 71.84, -4.19 80.14 2.52 33
11 02/27/2025 12:42:30 -71.85, 163.15 99.88 02/27/2025 12:41:41 -71.86, 163.10 99.86 1.87 49
12 02/27/2025 13:33:27 71.83, -29.62 80.10 02/27/2025 13:32:27 71.85, -29.58 80.12 2.13 60
13 02/27/2025 14:24:26 -71.89, 137.74 99.87 02/27/2025 14:23:11 -71.87, 137.71 99.88 3.17 75
14 02/27/2025 15:15:16 72.23, -54.32 80.42 02/27/2025 15:14:04 72.22, -55.65 80.49 45.09 72

Figure of NOAA-19 and NPP satellite orbits during SNOs since TLE Epoch: 2/25/2025
SNOs_Map_NOAA-19_NPP_20250225.jpg

Download SNOs between NOAA-19 and NPP since TLE EPOCH: 02/25/2025 in txt file.

Historial Predications of SNOs between NOAA-19 and NPP