Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 5 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)
 05/20/2021   16:35:04   (  -0.00,-128.30) (  -0.52,-126.00)  261.58                80
 05/22/2021   04:54:04   (   0.01,-128.26) (  -0.51,-130.64)  270.40                80
 05/23/2021   04:30:45   (   0.00,-128.28) (   0.60,-125.67)  298.48                80
 05/24/2021   16:49:36   (  -0.01,-128.37) (   0.43,-130.27)  216.18                80
 05/25/2021   16:31:37   (  -0.00,-128.39) (  -0.69,-125.29)  352.81                80
 05/27/2021   04:50:37   (   0.01,-128.35) (  -0.33,-129.93)  179.96                80
 05/28/2021   04:27:17   (   0.01,-128.36) (   0.73,-124.94)  387.85                80
 05/29/2021   16:46:09   (  -0.02,-128.43) (   0.25,-129.56)  128.95                80
 05/30/2021   16:28:10   (  -0.02,-128.44) (  -0.87,-124.58)  439.34                80
 06/01/2021   04:47:10   (   0.03,-128.40) (  -0.14,-129.22)   93.31                80
 06/02/2021   04:23:49   (   0.02,-128.41) (   0.92,-124.24)  474.39                80