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: 12/7/2025
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 12/10/2025 00:41:54 69.50, 167.66 92.30 12/10/2025 00:43:04 69.44, 169.00 92.25 52.72 70
2 12/10/2025 01:32:29 -69.07, -24.40 88.13 12/10/2025 01:33:42 -69.00, -24.22 88.19 9.93 73
3 12/10/2025 02:23:14 68.96, 143.05 91.77 12/10/2025 02:24:10 68.95, 143.09 91.76 2.16 56
4 12/10/2025 03:13:56 -68.90, -49.55 88.29 12/10/2025 03:14:41 -68.89, -49.61 88.30 2.41 45
5 12/10/2025 04:04:43 68.91, 117.75 91.72 12/10/2025 04:05:08 68.90, 117.78 91.71 1.68 25
6 12/10/2025 04:55:25 -68.85, -74.85 88.34 12/10/2025 04:55:39 -68.84, -74.92 88.35 2.98 14
7 12/10/2025 05:46:12 68.85, 92.45 91.67 12/10/2025 05:46:06 68.84, 92.47 91.66 1.36 6
8 12/10/2025 06:36:55 -68.85,-100.22 88.33 12/10/2025 06:36:36 -68.84,-100.16 88.34 2.69 19
9 12/10/2025 07:27:41 68.79, 67.15 91.62 12/10/2025 07:27:04 68.78, 67.15 91.61 1.28 37
10 12/10/2025 08:18:24 -68.79,-125.52 88.38 12/10/2025 08:17:34 -68.78,-125.47 88.40 2.22 50
11 12/10/2025 09:09:10 68.74, 41.85 91.57 12/10/2025 09:08:02 68.72, 41.84 91.56 1.45 68
12 12/10/2025 09:59:49 -68.52,-150.54 88.65 12/10/2025 09:58:36 -68.51,-151.07 88.66 21.78 73
13 12/10/2025 10:50:23 67.82, 17.67 90.67 12/10/2025 10:49:16 67.80, 15.43 90.64 93.91 67

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 12/7/2025
SNOs_Map_NPP_GCOM-C_20251208.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 12/07/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C