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: 9/27/2025

Index	Date	Time (GOES-17)	GOES-17 Lat,Lon	NOAA-21 Lat,Lon	Distance(km)	Time Diff (sec)
1	09/28/2025	19:39:26	0.23, -89.51	-0.58, -93.16	416.24	80
2	09/29/2025	19:20:41	0.24, -89.51	0.43, -88.63	100.39	80
3	10/02/2025	07:21:01	-0.24, -89.48	-0.26, -89.36	14.22	80
4	10/04/2025	19:26:50	0.24, -89.51	0.09, -90.12	68.94	80
5	10/05/2025	19:05:25	0.25, -89.52	1.12, -85.58	448.39	80
6	10/07/2025	07:29:51	-0.23, -89.50	0.05, -90.85	152.84	80
7	10/08/2025	07:08:26	-0.24, -89.50	-0.98, -86.31	364.17	80
8	10/09/2025	19:32:59	0.22, -89.53	-0.27, -91.60	235.92	80
9	10/10/2025	19:11:33	0.23, -89.54	0.77, -87.06	281.35	80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 9/27/2025

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 09/27/2025 in txt file.

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