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: 7/26/2025

Index	Date	Time (GOES-17)	GOES-17 Lat,Lon	NOAA-21 Lat,Lon	Distance(km)	Time Diff (sec)
1	07/27/2025	19:20:59	0.09, -89.51	0.30, -88.70	93.10	80
2	07/30/2025	07:24:02	-0.10, -89.48	-0.12, -89.44	5.84	80
3	08/01/2025	19:24:35	0.11, -89.54	-0.02, -90.22	77.09	80
4	08/02/2025	19:08:30	0.11, -89.54	1.00, -85.69	439.97	80
5	08/04/2025	07:27:38	-0.12, -89.51	0.20, -90.95	164.17	80
6	08/05/2025	07:11:33	-0.12, -89.52	-0.81, -86.42	352.83	80
7	08/06/2025	19:30:50	0.13, -89.57	-0.32, -91.74	246.79	80
8	08/07/2025	19:14:45	0.13, -89.57	0.64, -87.20	270.44	80
9	08/09/2025	07:33:53	-0.14, -89.55	0.51, -92.47	333.27	80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 7/26/2025

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 07/26/2025 in txt file.

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