Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NPP and GCOM-C Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 6/20/2025
Index Date (NPP) Time (NPP) Lat,Lon (NPP) SZA (NPP ) Date (GCOM-C) Time (GCOM-C) Lat,Lon (GCOM-C) SZA (GCOM-C ) Distance(km) Time Diff (sec)
1 06/24/2025 15:20:53 69.93, -53.32 46.48 06/24/2025 15:21:59 69.88, -50.85 46.38 94.56 66
2 06/24/2025 16:11:27 -69.41, 114.77 134.06 06/24/2025 16:12:38 -69.39, 115.82 134.11 41.19 71
3 06/24/2025 17:02:05 68.98, -77.32 45.50 06/24/2025 17:03:13 68.97, -77.38 45.48 2.76 68
4 06/24/2025 17:52:49 -68.99, 89.99 134.50 06/24/2025 17:53:43 -68.96, 89.99 134.52 2.73 54
5 06/24/2025 18:43:34 68.93,-102.62 45.45 06/24/2025 18:44:11 68.92,-102.69 45.43 3.04 37
6 06/24/2025 19:34:18 -68.94, 64.68 134.54 06/24/2025 19:34:41 -68.91, 64.68 134.57 3.08 23
7 06/24/2025 20:25:03 68.88,-127.93 45.40 06/24/2025 20:25:09 68.86,-128.00 45.38 3.33 6
8 06/24/2025 21:15:47 -68.89, 39.37 134.59 06/24/2025 21:15:39 -68.86, 39.37 134.62 3.44 8
9 06/24/2025 22:06:32 68.83,-153.24 45.35 06/24/2025 22:06:07 68.81,-153.30 45.33 3.61 25
10 06/24/2025 22:57:16 -68.84, 14.07 134.64 06/24/2025 22:56:36 -68.86, 14.14 134.62 3.61 40
11 06/24/2025 23:48:01 68.78,-178.54 45.30 06/24/2025 23:47:04 68.81,-178.54 45.34 3.27 57
12 06/25/2025 00:38:45 -68.79, -11.24 134.69 06/25/2025 00:37:34 -68.81, -11.17 134.67 3.39 71
13 06/25/2025 01:29:20 68.25, 156.78 44.76 06/25/2025 01:28:10 68.27, 155.52 44.81 52.24 70
14 06/25/2025 02:19:55 -67.78, -35.30 135.72 06/25/2025 02:18:48 -67.84, -37.65 135.61 98.67 67

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 6/20/2025
SNOs_Map_NPP_GCOM-C_20250620.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 06/20/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C