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: 8/10/2025

Index	Date	Time (GOES-17)	GOES-17 Lat,Lon	NOAA-21 Lat,Lon	Distance(km)	Time Diff (sec)
1	08/11/2025	19:37:05	0.15, -89.51	-0.70, -93.24	424.80	80
2	08/12/2025	19:21:00	0.14, -89.52	0.32, -88.71	92.24	80
3	08/15/2025	07:21:23	-0.15, -89.49	-0.14, -89.44	5.27	80
4	08/17/2025	19:24:35	0.16, -89.54	0.00, -90.22	78.05	80
5	08/18/2025	19:08:30	0.16, -89.54	1.03, -85.69	438.88	80
6	08/20/2025	07:27:38	-0.17, -89.51	0.18, -90.96	165.16	80
7	08/21/2025	07:11:33	-0.17, -89.52	-0.85, -86.43	352.14	80
8	08/22/2025	19:30:49	0.18, -89.57	-0.30, -91.74	246.57	80
9	08/23/2025	19:14:45	0.18, -89.59	0.74, -87.21	271.44	80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 8/10/2025

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 08/10/2025 in txt file.

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