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: 5/7/2025
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 05/14/2025 13:31:25 -70.93, 152.21 127.90 05/14/2025 13:30:13 -70.88, 151.04 127.90 42.89 72
2 05/14/2025 14:22:16 71.18, -40.91 52.36 05/14/2025 14:21:02 71.15, -41.21 52.35 11.19 74
3 05/14/2025 15:13:02 -71.29, 126.21 127.53 05/14/2025 15:12:02 -71.26, 126.24 127.55 3.40 60
4 05/14/2025 16:03:48 71.29, -66.47 52.46 05/14/2025 16:02:56 71.28, -66.46 52.46 0.99 52
5 05/14/2025 16:54:32 -71.29, 100.83 127.55 05/14/2025 16:53:58 -71.29, 100.80 127.55 1.28 34
6 05/14/2025 17:45:17 71.29, -91.85 52.44 05/14/2025 17:44:51 71.30, -91.90 52.46 2.56 26
7 05/14/2025 18:36:02 -71.35, 75.37 127.51 05/14/2025 18:35:53 -71.32, 75.37 127.54 3.37 9
8 05/14/2025 19:26:48 71.34,-117.32 52.48 05/14/2025 19:26:47 71.33,-117.33 52.47 1.37 1
9 05/14/2025 20:17:32 -71.35, 49.99 127.52 05/14/2025 20:17:49 -71.34, 49.93 127.53 2.20 17
10 05/14/2025 21:08:18 71.34,-142.69 52.47 05/14/2025 21:08:43 71.36,-142.77 52.48 3.20 25
11 05/14/2025 21:59:03 -71.40, 24.52 127.49 05/14/2025 21:59:44 -71.42, 24.59 127.47 3.20 41
12 05/14/2025 22:49:49 71.40,-168.16 52.51 05/14/2025 22:50:39 71.38,-168.21 52.49 2.21 50
13 05/14/2025 23:40:33 -71.40, -0.85 127.50 05/14/2025 23:41:41 -71.40, -0.94 127.51 3.10 68
14 05/15/2025 00:31:21 71.50, 166.28 52.60 05/15/2025 00:32:34 71.46, 166.45 52.54 7.60 73
15 05/15/2025 01:22:17 -72.12, -27.56 126.75 05/15/2025 01:23:24 -72.08, -25.12 126.88 83.51 67

Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 5/7/2025
SNOs_Map_NOAA-21_NOAA-19_20250507.jpg

Download SNOs between NOAA-21 and NOAA-19 since TLE EPOCH: 05/07/2025 in txt file.

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