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: 8/18/2025

Index	Date	Time (GOES-17)	GOES-17 Lat,Lon	NOAA-21 Lat,Lon	Distance(km)	Time Diff (sec)
1	08/20/2025	07:27:37	-0.18, -89.47	0.18, -90.95	169.30	80
2	08/21/2025	07:11:33	-0.18, -89.48	-0.85, -86.42	347.53	80
3	08/22/2025	19:30:49	0.18, -89.53	-0.31, -91.73	250.72	80
4	08/23/2025	19:14:45	0.18, -89.54	0.72, -87.20	266.81	80
5	08/25/2025	07:36:32	-0.19, -89.51	0.49, -92.47	337.29	80
6	08/26/2025	07:15:08	-0.19, -89.52	-0.54, -87.94	180.43	80
7	08/27/2025	19:37:04	0.19, -89.59	-0.60, -93.25	416.91	80
8	08/28/2025	19:20:58	0.19, -89.60	0.38, -88.71	101.06	80
9	08/31/2025	07:21:22	-0.20, -89.59	-0.26, -89.46	15.60	80

Figure of GOES-17 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 8/18/2025

Download SNOs between GOES-17 and NOAA-21 since TLE EPOCH: 08/18/2025 in txt file.

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