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: 4/5/2025
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 04/07/2025 20:36:33 -69.63, 47.96 117.61 04/07/2025 20:37:43 -69.55, 49.32 117.72 53.44 70
2 04/07/2025 21:27:09 69.06,-143.91 61.79 04/07/2025 21:28:19 69.06,-143.98 61.79 2.64 70
3 04/07/2025 22:17:52 -69.05, 23.42 118.24 04/07/2025 22:18:49 -69.07, 23.41 118.22 2.62 57
4 04/07/2025 23:08:38 69.00,-169.21 61.71 04/07/2025 23:09:17 69.01,-169.28 61.71 3.13 39
5 04/07/2025 23:59:21 -68.99, -1.88 118.32 04/07/2025 23:59:47 -69.02, -1.89 118.30 3.31 26
6 04/08/2025 00:50:08 69.00, 165.42 61.68 04/08/2025 00:50:14 69.01, 165.49 61.69 3.17 6
7 04/08/2025 01:40:51 -68.99, -27.25 118.35 04/08/2025 01:40:45 -68.97, -27.20 118.37 2.79 6
8 04/08/2025 02:31:37 68.94, 140.12 61.59 04/08/2025 02:31:12 68.96, 140.18 61.61 3.33 25
9 04/08/2025 03:22:20 -68.93, -52.55 118.44 04/08/2025 03:21:43 -68.92, -52.51 118.45 2.15 37
10 04/08/2025 04:13:06 68.89, 114.82 61.51 04/08/2025 04:12:11 68.86, 114.80 61.49 3.12 55
11 04/08/2025 05:03:49 -68.88, -77.84 118.52 04/08/2025 05:02:41 -68.87, -77.81 118.52 1.58 68
12 04/08/2025 05:54:27 68.40, 90.09 60.99 04/08/2025 05:53:16 68.43, 89.00 61.04 44.95 71
13 04/08/2025 06:45:02 -67.96,-102.03 119.47 04/08/2025 06:43:54 -68.01,-104.16 119.38 89.00 68

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 4/5/2025
SNOs_Map_NPP_GCOM-C_20250405.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 04/05/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C