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: 1/12/2025
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 07:49:24 -69.84,-120.69 90.12 01/20/2025 07:50:33 -69.79,-119.03 90.23 63.85 69
2 01/20/2025 08:39:58 69.22, 47.53 89.23 01/20/2025 08:41:11 69.22, 47.53 89.21 0.72 73
3 01/20/2025 09:30:42 -69.21,-145.14 90.80 01/20/2025 09:31:42 -69.19,-145.13 90.82 2.06 60
4 01/20/2025 10:21:27 69.17, 22.22 89.16 01/20/2025 10:22:10 69.15, 22.20 89.13 2.84 43
5 01/20/2025 11:12:11 -69.16,-170.45 90.87 01/20/2025 11:12:40 -69.18,-170.39 90.85 3.15 29
6 01/20/2025 12:02:56 69.12, -3.08 89.09 01/20/2025 12:03:08 69.13, -3.06 89.10 1.57 12
7 01/20/2025 12:53:40 -69.11, 164.25 90.93 01/20/2025 12:53:39 -69.11, 164.28 90.93 1.28 1
8 01/20/2025 13:44:25 69.07, -28.39 89.02 01/20/2025 13:44:07 69.07, -28.40 89.02 0.68 18
9 01/20/2025 14:35:08 -69.06, 138.94 91.00 01/20/2025 14:34:37 -69.04, 138.95 91.01 1.85 31
10 01/20/2025 15:25:53 69.02, -53.69 88.96 01/20/2025 15:25:05 69.00, -53.73 88.94 2.92 48
11 01/20/2025 16:16:37 -69.01, 113.64 91.07 01/20/2025 16:15:35 -69.03, 113.69 91.04 2.97 62
12 01/20/2025 17:07:19 68.81, -78.78 88.72 01/20/2025 17:06:06 68.82, -79.21 88.76 17.21 73
13 01/20/2025 17:57:55 -68.37, 89.11 91.74 01/20/2025 17:56:45 -68.37, 87.57 91.69 63.24 70

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 1/12/2025
SNOs_Map_NPP_GCOM-C_20250112.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 01/12/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C