Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 9 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 09/13/2021   16:31:25   (  -0.14,-128.08) (   0.02,-128.67)   68.22                80
 09/14/2021   16:13:25   (  -0.11,-128.05) (  -1.08,-123.69)  496.86                80
 09/16/2021   04:29:45   (   0.15,-128.04) (   0.10,-128.34)   33.34                80
 09/18/2021   16:27:55   (  -0.17,-127.94) (  -0.17,-127.95)    1.89                80
 09/21/2021   04:28:54   (   0.19,-127.90) (   0.24,-127.61)   33.22                80
 09/23/2021   16:27:03   (  -0.20,-127.79) (  -0.30,-127.23)   64.11                80
 09/25/2021   04:43:24   (   0.23,-127.79) (  -0.66,-131.88)  465.34                80