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: 9/9/2025

Index	Date	Time (GOES-17)	GOES-17 Lat,Lon	NOAA-21 Lat,Lon	Distance(km)	Time Diff (sec)
1	09/10/2025	07:36:27	-0.22, -89.49	0.42, -92.45	337.35	80
2	09/11/2025	07:15:02	-0.22, -89.49	-0.58, -87.92	179.39	80
3	09/12/2025	19:36:57	0.22, -89.53	-0.59, -93.22	419.97	80
4	09/13/2025	19:20:52	0.23, -89.53	0.41, -88.68	96.90	80
5	09/16/2025	07:21:15	-0.23, -89.50	-0.28, -89.42	10.18	80
6	09/18/2025	19:24:24	0.24, -89.55	0.12, -90.19	71.92	80
7	09/19/2025	19:08:19	0.24, -89.56	1.13, -85.65	445.96	80
8	09/21/2025	07:30:06	-0.24, -89.55	0.05, -90.92	155.90	80
9	09/22/2025	07:08:41	-0.24, -89.56	-0.95, -86.38	362.01	80

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

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

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