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: 6/8/2025
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 06/16/2025 01:22:18 -70.78, -25.30 132.59 06/16/2025 01:21:05 -70.77, -26.20 132.55 33.24 73
2 06/16/2025 02:13:08 70.96, 141.72 47.60 06/16/2025 02:11:54 70.94, 141.37 47.61 12.91 74
3 06/16/2025 03:03:54 -71.10, -51.20 132.26 06/16/2025 03:02:55 -71.10, -51.11 132.25 3.26 59
4 06/16/2025 03:54:40 71.06, 116.16 47.71 06/16/2025 03:53:48 71.07, 116.11 47.72 2.14 52
5 06/16/2025 04:45:24 -71.10, -76.58 132.26 06/16/2025 04:44:51 -71.13, -76.55 132.23 2.95 33
6 06/16/2025 05:36:11 71.12, 90.70 47.76 06/16/2025 05:35:43 71.14, 90.75 47.79 3.20 28
7 06/16/2025 06:26:55 -71.16,-102.05 132.20 06/16/2025 06:26:47 -71.15,-102.00 132.21 1.94 8
8 06/16/2025 07:17:42 71.17, 65.23 47.82 06/16/2025 07:17:39 71.16, 65.31 47.81 3.24 3
9 06/16/2025 08:08:25 -71.16,-127.43 132.20 06/16/2025 08:08:43 -71.17,-127.44 132.19 1.52 18
10 06/16/2025 08:59:12 71.18, 39.85 47.82 06/16/2025 08:59:35 71.19, 39.87 47.83 1.35 23
11 06/16/2025 09:49:56 -71.21,-152.90 132.14 06/16/2025 09:50:39 -71.19,-152.88 132.17 2.18 43
12 06/16/2025 10:40:43 71.23, 14.38 47.88 06/16/2025 10:41:31 71.21, 14.43 47.85 3.02 48
13 06/16/2025 11:31:26 -71.22,-178.28 132.14 06/16/2025 11:32:35 -71.22,-178.33 132.15 1.87 69
14 06/16/2025 12:22:13 71.24, -11.00 47.88 06/16/2025 12:23:27 71.23, -11.02 47.87 0.54 74
15 06/16/2025 13:13:10 -71.94, 155.04 131.37 06/16/2025 13:14:18 -71.90, 157.47 131.51 83.78 68

Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 6/8/2025
SNOs_Map_NOAA-21_NOAA-19_20250608.jpg

Download SNOs between NOAA-21 and NOAA-19 since TLE EPOCH: 06/08/2025 in txt file.

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