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: 1/15/2025
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 01/20/2025 07:49:23 -69.84,-120.68 90.13 01/20/2025 07:50:32 -69.79,-119.04 90.24 63.37 69
2 01/20/2025 08:39:57 69.22, 47.53 89.22 01/20/2025 08:41:10 69.21, 47.52 89.21 0.56 73
3 01/20/2025 09:30:41 -69.21,-145.14 90.80 01/20/2025 09:31:41 -69.19,-145.14 90.83 2.37 60
4 01/20/2025 10:21:26 69.17, 22.23 89.15 01/20/2025 10:22:09 69.14, 22.19 89.13 2.84 43
5 01/20/2025 11:12:10 -69.16,-170.44 90.87 01/20/2025 11:12:39 -69.17,-170.40 90.86 2.47 29
6 01/20/2025 12:02:55 69.12, -3.07 89.08 01/20/2025 12:03:07 69.13, -3.07 89.10 1.65 12
7 01/20/2025 12:53:39 -69.11, 164.25 90.94 01/20/2025 12:53:38 -69.11, 164.27 90.94 0.83 1
8 01/20/2025 13:44:24 69.07, -28.38 89.02 01/20/2025 13:44:06 69.06, -28.40 89.02 0.97 18
9 01/20/2025 14:35:08 -69.06, 138.95 91.00 01/20/2025 14:34:37 -69.04, 138.94 91.02 2.35 31
10 01/20/2025 15:25:53 69.02, -53.69 88.95 01/20/2025 15:25:05 68.99, -53.74 88.94 3.08 48
11 01/20/2025 16:16:37 -69.01, 113.64 91.07 01/20/2025 16:15:35 -69.02, 113.68 91.05 2.23 62
12 01/20/2025 17:07:19 68.80, -78.77 88.72 01/20/2025 17:06:06 68.82, -79.21 88.75 17.80 73
13 01/20/2025 17:57:55 -68.37, 89.12 91.75 01/20/2025 17:56:45 -68.36, 87.56 91.70 63.78 70

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 1/15/2025
SNOs_Map_NPP_GCOM-C_20250115.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 01/15/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C