Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 11 23.  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)
 11/23/2021   18:21:50   (  -0.24,-128.34) (   0.63,-132.31)  451.40                80
 11/24/2021   17:58:31   (  -0.25,-128.33) (  -0.49,-127.31)  115.73                80
 11/26/2021   06:20:10   (   0.23,-128.27) (  -0.56,-131.90)  413.62                80
 11/27/2021   05:56:51   (   0.24,-128.25) (   0.55,-126.91)  153.17                80
 11/28/2021   18:18:22   (  -0.22,-128.24) (   0.50,-131.46)  367.09                80
 11/29/2021   17:55:02   (  -0.23,-128.22) (  -0.62,-126.47)  199.51                80
 12/01/2021   06:16:42   (   0.22,-128.16) (  -0.43,-131.06)  330.57                80
 12/02/2021   05:53:22   (   0.22,-128.13) (   0.69,-126.06)  235.47                80
 12/03/2021   18:14:54   (  -0.21,-128.11) (   0.36,-130.62)  286.16                80
 12/04/2021   17:51:34   (  -0.21,-128.08) (  -0.75,-125.63)  279.49                80
 12/06/2021   06:13:13   (   0.20,-128.00) (  -0.29,-130.21)  251.95                80