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: 4/22/2025
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 04/28/2025 06:44:46 -70.75,-105.84 123.56 04/28/2025 06:43:37 -70.77,-107.80 123.46 72.11 69
2 04/28/2025 07:35:40 71.19, 60.73 56.90 04/28/2025 07:34:27 71.21, 60.22 56.95 18.36 73
3 04/28/2025 08:26:28 -71.39,-132.29 122.91 04/28/2025 08:25:22 -71.37,-132.24 122.92 2.86 66
4 04/28/2025 09:17:13 71.36, 35.06 57.06 04/28/2025 09:16:20 71.39, 35.07 57.09 3.56 53
5 04/28/2025 10:07:58 -71.40,-157.69 122.92 04/28/2025 10:07:18 -71.39,-157.67 122.92 0.71 40
6 04/28/2025 10:58:44 71.43, 9.57 57.10 04/28/2025 10:58:16 71.42, 9.63 57.10 2.24 28
7 04/28/2025 11:49:28 -71.41, 176.92 122.93 04/28/2025 11:49:14 -71.42, 176.90 122.91 1.56 14
8 04/28/2025 12:40:14 71.44, -15.82 57.09 04/28/2025 12:40:12 71.45, -15.80 57.10 1.56 2
9 04/28/2025 13:30:59 -71.48, 151.43 122.88 04/28/2025 13:31:10 -71.45, 151.47 122.91 2.88 11
10 04/28/2025 14:21:44 71.45, -41.22 57.08 04/28/2025 14:22:08 71.48, -41.23 57.11 2.98 24
11 04/28/2025 15:12:29 -71.49, 126.03 122.89 04/28/2025 15:13:06 -71.48, 126.04 122.90 0.73 37
12 04/28/2025 16:03:15 71.52, -66.71 57.13 04/28/2025 16:04:04 71.51, -66.66 57.11 2.04 49
13 04/28/2025 16:53:59 -71.50, 100.63 122.90 04/28/2025 16:55:02 -71.51, 100.61 122.90 1.48 63
14 04/28/2025 17:44:46 71.58, -92.20 57.18 04/28/2025 17:46:00 71.54, -92.09 57.12 6.36 74
15 04/28/2025 18:35:39 -72.03, 74.29 122.36 04/28/2025 18:36:49 -72.00, 76.05 122.46 60.49 70

Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 4/22/2025
SNOs_Map_NOAA-21_NOAA-19_20250422.jpg

Download SNOs between NOAA-21 and NOAA-19 since TLE EPOCH: 04/22/2025 in txt file.

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