Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 8 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 08/31/2021   06:17:29   (   0.23,-128.28) (  -0.56,-131.91)  412.85                80
 09/01/2021   05:59:29   (   0.21,-128.27) (   0.48,-126.90)  156.28                80
 09/02/2021   18:15:41   (  -0.24,-128.22) (   0.49,-131.46)  369.64                80
 09/03/2021   17:57:42   (  -0.22,-128.21) (  -0.62,-126.47)  199.38                80
 09/05/2021   06:14:03   (   0.25,-128.24) (  -0.37,-131.07)  322.08                80
 09/06/2021   05:56:03   (   0.23,-128.23) (   0.74,-126.07)  246.39                80
 09/07/2021   18:12:15   (  -0.27,-128.17) (   0.28,-130.63)  280.49                80
 09/08/2021   17:54:15   (  -0.25,-128.16) (  -0.82,-125.63)  288.01                80
 09/10/2021   06:10:37   (   0.28,-128.18) (  -0.16,-130.24)  233.79                80
 09/11/2021   05:52:36   (   0.26,-128.17) (   0.89,-125.23)  334.09                80
 09/12/2021   18:08:48   (  -0.29,-128.09) (   0.07,-129.80)  194.15                80