Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 9 17.  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)
 09/18/2021   16:27:54   (  -0.17,-127.94) (  -0.14,-127.95)    3.27                80
 09/21/2021   04:28:54   (   0.19,-127.90) (   0.27,-127.62)   32.46                80
 09/23/2021   16:27:04   (  -0.20,-127.79) (  -0.33,-127.23)   63.82                80
 09/25/2021   04:43:23   (   0.23,-127.78) (  -0.69,-131.87)  466.37                80
 09/26/2021   04:25:23   (   0.21,-127.74) (   0.41,-126.89)   97.59                80
 09/27/2021   16:41:33   (  -0.24,-127.65) (   0.62,-131.49)  436.92                80
 09/28/2021   16:23:32   (  -0.21,-127.62) (  -0.47,-126.51)  126.85                80
 09/30/2021   04:39:52   (   0.24,-127.59) (  -0.54,-131.14)  404.15                80