Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 9 22.  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)
 09/23/2021   16:27:03   (  -0.20,-127.78) (  -0.30,-127.22)   63.12                80
 09/25/2021   04:43:23   (   0.23,-127.76) (  -0.67,-131.87)  468.19                80
 09/26/2021   04:25:22   (   0.21,-127.72) (   0.37,-126.88)   95.54                80
 09/27/2021   16:41:33   (  -0.24,-127.64) (   0.60,-131.49)  438.65                80
 09/28/2021   16:23:32   (  -0.21,-127.60) (  -0.44,-126.50)  124.84                80
 09/30/2021   04:39:52   (   0.24,-127.57) (  -0.52,-131.15)  407.31                80
 10/01/2021   04:21:51   (   0.22,-127.52) (   0.52,-126.16)  155.62                80
 10/02/2021   16:38:01   (  -0.25,-127.42) (   0.51,-130.75)  379.82                80
 10/03/2021   16:20:00   (  -0.23,-127.38) (  -0.59,-125.77)  183.04                80
 10/05/2021   04:36:20   (   0.26,-127.34) (  -0.41,-130.41)  349.49                80