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: 4/4/2025
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 04/07/2025 20:36:33 -69.63, 47.97 117.62 04/07/2025 20:37:43 -69.56, 49.34 117.71 53.58 70
2 04/07/2025 21:27:10 69.10,-143.98 61.84 04/07/2025 21:28:19 69.08,-143.95 61.80 3.23 69
3 04/07/2025 22:17:52 -69.04, 23.43 118.25 04/07/2025 22:18:50 -69.03, 23.36 118.26 2.96 58
4 04/07/2025 23:08:39 69.05,-169.27 61.75 04/07/2025 23:09:17 69.03,-169.26 61.73 2.55 38
5 04/07/2025 23:59:22 -69.04, -1.94 118.27 04/07/2025 23:59:47 -69.04, -1.87 118.28 2.72 25
6 04/08/2025 00:50:08 68.99, 165.43 61.67 04/08/2025 00:50:15 68.98, 165.43 61.65 1.88 7
7 04/08/2025 01:40:51 -68.98, -27.24 118.36 04/08/2025 01:40:45 -68.99, -27.18 118.35 2.49 6
8 04/08/2025 02:31:37 68.94, 140.13 61.59 04/08/2025 02:31:13 68.93, 140.13 61.58 1.24 24
9 04/08/2025 03:22:20 -68.93, -52.54 118.44 04/08/2025 03:21:43 -68.94, -52.48 118.43 2.46 37
10 04/08/2025 04:13:06 68.88, 114.83 61.50 04/08/2025 04:12:11 68.88, 114.82 61.50 0.68 55
11 04/08/2025 05:03:49 -68.87, -77.84 118.52 04/08/2025 05:02:41 -68.89, -77.79 118.50 2.64 68
12 04/08/2025 05:54:28 68.45, 90.03 61.04 04/08/2025 05:53:16 68.45, 89.02 61.06 41.29 72
13 04/08/2025 06:45:02 -67.96,-102.02 119.48 04/08/2025 06:43:55 -67.97,-104.20 119.42 91.16 67

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 4/4/2025
SNOs_Map_NPP_GCOM-C_20250404.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 04/04/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C