Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between GOES-17 and NOAA-21 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 8/23/2025

Index	Date	Time (GOES-17)	GOES-17 Lat,Lon	NOAA-21 Lat,Lon	Distance(km)	Time Diff (sec)
1	08/25/2025	07:36:32	-0.19, -89.47	0.50, -92.46	341.52	80
2	08/26/2025	07:17:05	-0.19, -89.47	-0.53, -87.94	175.49	38
3	08/27/2025	19:37:04	0.19, -89.53	-0.61, -93.25	423.26	80
4	08/28/2025	19:20:58	0.19, -89.53	0.37, -88.71	93.99	80
5	08/31/2025	07:21:21	-0.20, -89.51	-0.19, -89.44	7.31	80
6	09/02/2025	19:24:32	0.21, -89.56	0.03, -90.21	74.97	80
7	09/03/2025	19:08:27	0.21, -89.57	1.07, -85.69	442.41	80
8	09/05/2025	07:30:16	-0.22, -89.54	0.08, -90.96	161.31	80
9	09/06/2025	07:08:50	-0.22, -89.55	-0.90, -86.42	356.13	80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 8/23/2025

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 08/23/2025 in txt file.

Historical Predications of SNOs between GOES-17 and NOAA-21