Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 5 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 05/12/2021   18:53:24   (   0.05,-137.19) (   0.89,-141.00)  434.15                80
 05/13/2021   18:35:25   (   0.05,-137.18) (  -0.22,-136.01)  133.89                80
 05/15/2021   06:51:48   (  -0.04,-137.16) (  -0.79,-140.61)  392.82                80
 05/16/2021   06:33:49   (  -0.04,-137.15) (   0.32,-135.62)  174.69                80
 05/17/2021   18:50:02   (   0.03,-137.14) (   0.71,-140.18)  346.83                80
 05/18/2021   18:32:03   (   0.03,-137.12) (  -0.40,-135.19)  220.34                80
 05/20/2021   06:48:25   (  -0.02,-137.09) (  -0.61,-139.79)  307.45                80
 05/21/2021   06:30:27   (  -0.02,-137.07) (   0.50,-134.80)  259.47                80
 05/22/2021   18:46:39   (   0.02,-137.05) (   0.53,-139.36)  262.95                80
 05/23/2021   18:28:41   (   0.02,-137.02) (  -0.59,-134.36)  303.61                80
 05/25/2021   06:45:02   (  -0.02,-136.98) (  -0.48,-138.95)  225.35                80