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: 9/7/2025

Index	Date	Time (GOES-17)	GOES-17 Lat,Lon	NOAA-21 Lat,Lon	Distance(km)	Time Diff (sec)
1	09/08/2025	19:14:40	0.22, -89.52	0.75, -87.18	266.83	80
2	09/10/2025	07:36:27	-0.22, -89.49	0.44, -92.45	337.31	80
3	09/11/2025	07:15:02	-0.22, -89.49	-0.55, -87.91	179.38	80
4	09/12/2025	19:36:57	0.22, -89.53	-0.61, -93.21	420.32	80
5	09/13/2025	19:20:51	0.23, -89.53	0.39, -88.68	96.53	80
6	09/16/2025	07:21:14	-0.23, -89.50	-0.26, -89.42	9.42	80
7	09/18/2025	19:24:24	0.24, -89.55	0.11, -90.19	72.53	80
8	09/19/2025	19:08:19	0.24, -89.56	1.11, -85.65	445.25	80
9	09/21/2025	07:30:06	-0.24, -89.54	0.06, -90.92	156.44	80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 9/7/2025

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 09/07/2025 in txt file.

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