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: 12/5/2025
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 69.51, 167.64 92.32 12/10/2025 00:43:04 69.42, 168.98 92.23 53.31 70
2 12/10/2025 01:32:28 -69.03, -24.35 88.17 12/10/2025 01:33:42 -68.99, -24.24 88.21 5.93 74
3 12/10/2025 02:23:13 68.92, 143.10 91.74 12/10/2025 02:24:10 68.94, 143.07 91.75 1.61 57
4 12/10/2025 03:13:56 -68.92, -49.57 88.27 12/10/2025 03:14:40 -68.93, -49.55 88.26 1.89 44
5 12/10/2025 04:04:42 68.87, 117.80 91.69 12/10/2025 04:05:08 68.88, 117.76 91.70 2.02 26
6 12/10/2025 04:55:25 -68.86, -74.87 88.32 12/10/2025 04:55:38 -68.88, -74.87 88.31 1.68 13
7 12/10/2025 05:46:11 68.81, 92.50 91.64 12/10/2025 05:46:06 68.82, 92.45 91.64 2.50 5
8 12/10/2025 06:36:54 -68.81,-100.17 88.37 12/10/2025 06:36:36 -68.82,-100.18 88.36 1.66 18
9 12/10/2025 07:27:40 68.76, 67.20 91.59 12/10/2025 07:27:04 68.77, 67.13 91.59 3.00 36
10 12/10/2025 08:18:23 -68.75,-125.47 88.42 12/10/2025 08:17:34 -68.76,-125.49 88.41 1.82 49
11 12/10/2025 09:09:10 68.75, 41.83 91.59 12/10/2025 09:08:01 68.76, 41.89 91.60 2.57 69
12 12/10/2025 09:59:49 -68.53,-150.55 88.63 12/10/2025 09:58:35 -68.55,-151.02 88.62 18.90 74
13 12/10/2025 10:50:22 67.78, 17.71 90.63 12/10/2025 10:49:15 67.84, 15.48 90.67 94.08 67

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 12/5/2025
SNOs_Map_NPP_GCOM-C_20251206.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 12/05/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C