Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 9 20.  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)
 09/21/2021   04:28:54   (   0.19,-127.89) (   0.26,-127.61)   31.78                80
 09/23/2021   16:27:04   (  -0.20,-127.78) (  -0.33,-127.23)   63.14                80
 09/25/2021   04:43:23   (   0.23,-127.76) (  -0.69,-131.87)  467.72                80
 09/26/2021   04:25:23   (   0.21,-127.73) (   0.41,-126.89)   96.09                80
 09/27/2021   16:41:33   (  -0.24,-127.64) (   0.62,-131.49)  438.21                80
 09/28/2021   16:23:32   (  -0.21,-127.60) (  -0.47,-126.51)  125.39                80
 09/30/2021   04:39:52   (   0.24,-127.57) (  -0.54,-131.14)  406.32                80
 10/01/2021   04:21:50   (   0.22,-127.53) (   0.50,-126.15)  156.71                80
 10/02/2021   16:38:02   (  -0.25,-127.43) (   0.47,-130.76)  378.89                80
 10/03/2021   16:20:00   (  -0.23,-127.39) (  -0.57,-125.77)  184.07                80