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: 9/29/2025

Index	Date	Time (GOES-17)	GOES-17 Lat,Lon	NOAA-21 Lat,Lon	Distance(km)	Time Diff (sec)
1	10/02/2025	07:21:02	-0.24, -89.48	-0.29, -89.36	14.69	80
2	10/04/2025	19:26:51	0.24, -89.52	0.12, -90.12	68.47	80
3	10/05/2025	19:05:25	0.25, -89.52	1.15, -85.59	448.92	80
4	10/07/2025	07:29:51	-0.23, -89.51	0.08, -90.84	152.29	80
5	10/08/2025	07:08:25	-0.24, -89.51	-0.96, -86.31	364.75	80
6	10/09/2025	19:32:59	0.22, -89.54	-0.23, -91.60	235.16	80
7	10/10/2025	19:11:34	0.23, -89.54	0.80, -87.07	282.15	80
8	10/12/2025	07:35:59	-0.21, -89.53	0.40, -92.32	318.47	80
9	10/13/2025	07:14:34	-0.23, -89.53	-0.64, -87.79	198.52	80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 9/29/2025

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 09/29/2025 in txt file.

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