Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-20 and NOAA-19 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 5/18/2025
Index Date (NOAA-20) Time (NOAA-20) Lat,Lon (NOAA-20) SZA (NOAA-20 ) Date (NOAA-19) Time (NOAA-19) Lat,Lon (NOAA-19) SZA (NOAA-19 ) Distance(km) Time Diff (sec)
1 05/22/2025 10:06:57 -70.70,-156.69 129.83 05/22/2025 10:05:46 -70.67,-158.03 129.80 49.35 71
2 05/22/2025 10:57:47 70.92, 10.25 50.40 05/22/2025 10:56:34 70.91, 9.67 50.43 21.17 73
3 05/22/2025 11:48:35 -71.12, 177.23 129.40 05/22/2025 11:47:34 -71.11, 177.24 129.40 1.25 61
4 05/22/2025 12:39:21 71.13, -15.48 50.61 05/22/2025 12:38:26 71.15, -15.41 50.63 3.02 55
5 05/22/2025 13:30:05 -71.12, 151.85 129.41 05/22/2025 13:29:30 -71.13, 151.80 129.39 2.21 35
6 05/22/2025 14:20:51 71.14, -40.86 50.60 05/22/2025 14:20:23 71.12, -40.94 50.59 3.33 28
7 05/22/2025 15:11:36 -71.18, 126.38 129.37 05/22/2025 15:11:26 -71.16, 126.37 129.38 2.03 10
8 05/22/2025 16:02:22 71.19, -66.33 50.65 05/22/2025 16:02:18 71.20, -66.29 50.65 1.75 4
9 05/22/2025 16:53:06 -71.18, 101.00 129.38 05/22/2025 16:53:22 -71.18, 100.93 129.37 2.83 16
10 05/22/2025 17:43:52 71.19, -91.71 50.64 05/22/2025 17:44:14 71.22, -91.73 50.66 2.96 22
11 05/22/2025 18:34:37 -71.23, 75.53 129.33 05/22/2025 18:35:18 -71.21, 75.49 129.36 3.11 41
12 05/22/2025 19:25:23 71.25,-117.18 50.68 05/22/2025 19:26:10 71.25,-117.16 50.67 0.81 47
13 05/22/2025 20:16:08 -71.29, 50.06 129.29 05/22/2025 20:17:13 -71.29, 50.14 129.30 2.81 65
14 05/22/2025 21:06:53 71.25,-142.56 50.67 05/22/2025 21:08:06 71.27,-142.60 50.68 2.48 73
15 05/22/2025 21:57:50 -71.91, 23.57 128.64 05/22/2025 21:58:58 -71.87, 25.75 128.76 75.73 68

Figure of NOAA-20 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 5/18/2025
SNOs_Map_NOAA-20_NOAA-19_20250518.jpg

Download SNOs between NOAA-20 and NOAA-19 since TLE EPOCH: 05/18/2025 in txt file.

Historial Predications of SNOs between NOAA-20 and NOAA-19