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: 6/24/2025
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 06/24/2025 15:20:53 69.94, -53.32 46.49 06/24/2025 15:21:59 69.87, -50.86 46.37 94.61 66
2 06/24/2025 16:11:27 -69.42, 114.76 134.05 06/24/2025 16:12:38 -69.38, 115.81 134.12 41.34 71
3 06/24/2025 17:02:05 68.98, -77.32 45.50 06/24/2025 17:03:13 68.96, -77.38 45.48 3.39 68
4 06/24/2025 17:52:48 -68.95, 90.05 134.54 06/24/2025 17:53:43 -68.96, 89.98 134.53 2.99 55
5 06/24/2025 18:43:34 68.93,-102.63 45.45 06/24/2025 18:44:10 68.96,-102.62 45.48 3.34 36
6 06/24/2025 19:34:17 -68.90, 64.74 134.59 06/24/2025 19:34:41 -68.90, 64.67 134.58 2.95 24
7 06/24/2025 20:25:03 68.89,-127.93 45.40 06/24/2025 20:25:08 68.91,-127.93 45.43 2.97 5
8 06/24/2025 21:15:46 -68.85, 39.44 134.64 06/24/2025 21:15:39 -68.85, 39.36 134.63 2.93 7
9 06/24/2025 22:06:32 68.84,-153.24 45.36 06/24/2025 22:06:06 68.86,-153.24 45.38 2.60 26
10 06/24/2025 22:57:16 -68.85, 14.06 134.63 06/24/2025 22:56:36 -68.85, 14.13 134.63 2.87 40
11 06/24/2025 23:48:01 68.79,-178.55 45.31 06/24/2025 23:47:04 68.81,-178.55 45.33 2.24 57
12 06/25/2025 00:38:45 -68.80, -11.25 134.68 06/25/2025 00:37:34 -68.80, -11.18 134.68 2.86 71
13 06/25/2025 01:29:21 68.25, 156.78 44.76 06/25/2025 01:28:11 68.27, 155.51 44.81 52.24 70
14 06/25/2025 02:19:56 -67.79, -35.31 135.71 06/25/2025 02:18:49 -67.83, -37.66 135.62 98.55 67
15 07/07/2025 14:36:33 69.92, -42.18 47.37 07/07/2025 14:37:40 69.86, -39.72 47.25 94.16 67
16 07/07/2025 15:27:08 -69.46, 125.82 133.11 07/07/2025 15:28:19 -69.39, 126.96 133.21 45.50 71
17 07/07/2025 16:17:45 68.97, -66.18 46.39 07/07/2025 16:18:54 68.95, -66.25 46.37 3.64 69
18 07/07/2025 17:08:29 -68.99, 101.11 133.59 07/07/2025 17:09:24 -68.96, 101.13 133.62 3.28 55
19 07/07/2025 17:59:14 68.92, -91.49 46.35 07/07/2025 17:59:51 68.95, -91.49 46.37 3.28 37
20 07/07/2025 18:49:57 -68.89, 75.88 133.69 07/07/2025 18:50:22 -68.91, 75.83 133.67 3.14 25
21 07/07/2025 19:40:43 68.87,-116.79 46.31 07/07/2025 19:40:49 68.90,-116.80 46.33 2.79 6
22 07/07/2025 20:31:26 -68.84, 50.57 133.73 07/07/2025 20:31:20 -68.85, 50.52 133.71 2.86 6
23 07/07/2025 21:22:12 68.82,-142.10 46.26 07/07/2025 21:21:47 68.84,-142.11 46.29 2.29 25
24 07/07/2025 22:12:55 -68.79, 25.26 133.77 07/07/2025 22:12:18 -68.80, 25.21 133.76 2.63 37
25 07/07/2025 23:03:41 68.77,-167.41 46.22 07/07/2025 23:02:45 68.79,-167.42 46.24 1.80 56
26 07/07/2025 23:54:24 -68.74, -0.04 133.82 07/07/2025 23:53:16 -68.75, -0.10 133.80 2.44 68
27 07/08/2025 00:45:02 68.29, 167.85 45.74 07/08/2025 00:43:51 68.30, 166.71 45.78 46.85 71
28 07/08/2025 01:35:37 -67.83, -24.25 134.74 07/08/2025 01:34:30 -67.83, -26.51 134.68 94.91 67

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 6/24/2025
SNOs_Map_NPP_GCOM-C_20250624.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 06/24/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C