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: 8/27/2025

Index	Date	Time (GOES-17)	GOES-17 Lat,Lon	NOAA-21 Lat,Lon	Distance(km)	Time Diff (sec)
1	08/28/2025	19:20:59	0.19, -89.53	0.38, -88.71	93.71	80
2	08/31/2025	07:21:21	-0.20, -89.50	-0.21, -89.44	6.51	80
3	09/02/2025	19:24:32	0.21, -89.55	0.06, -90.22	75.64	80
4	09/03/2025	19:08:28	0.21, -89.56	1.10, -85.69	441.61	80
5	09/05/2025	07:30:15	-0.22, -89.53	0.11, -90.95	161.93	80
6	09/06/2025	07:08:51	-0.22, -89.54	-0.94, -86.43	355.44	80
7	09/07/2025	19:30:46	0.22, -89.59	-0.24, -91.73	243.01	80
8	09/08/2025	19:14:40	0.22, -89.60	0.75, -87.19	274.88	80
9	09/10/2025	07:36:29	-0.22, -89.59	0.40, -92.47	327.48	80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 8/27/2025

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 08/27/2025 in txt file.

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