Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 5 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 05/08/2021   15:14:40   (   0.07,-127.98) (  -0.21,-126.69)  146.68                80
 05/09/2021   15:02:56   (   0.07,-128.02) (  -0.91,-123.83)  477.67                80
 05/11/2021   03:35:33   (  -0.06,-127.97) (  -0.89,-131.64)  417.96                80
 05/12/2021   03:23:48   (  -0.06,-128.00) (  -0.26,-128.76)   87.59                80
 05/13/2021   03:09:25   (  -0.06,-128.03) (   0.43,-125.90)  242.66                80
 05/15/2021   15:30:18   (   0.05,-128.19) (   0.67,-130.85)  303.30                80
 05/16/2021   15:21:13   (   0.05,-128.22) (   0.03,-127.98)   26.80                80
 05/17/2021   15:09:30   (   0.05,-128.24) (  -0.68,-125.12)  356.41                80
 05/20/2021   03:30:22   (  -0.05,-128.21) (  -0.50,-130.06)  211.56                80
 05/21/2021   03:15:59   (  -0.05,-128.23) (   0.19,-127.20)  117.70                80