Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 4 11.  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)
 04/11/2021   06:57:39   (  -0.04,-137.19) (  -0.96,-141.41)  479.75                80
 04/12/2021   06:34:18   (  -0.04,-137.18) (   0.13,-136.40)   88.69                80
 04/13/2021   18:55:49   (   0.04,-137.18) (   0.87,-140.97)  431.25                80
 04/14/2021   18:32:29   (   0.04,-137.17) (  -0.21,-135.97)  136.76                80
 04/16/2021   06:54:08   (  -0.04,-137.14) (  -0.81,-140.56)  390.30                80
 04/17/2021   06:30:49   (  -0.04,-137.12) (   0.34,-135.57)  177.15                80
 04/18/2021   18:49:39   (   0.03,-137.10) (   0.71,-140.13)  344.39                80
 04/19/2021   18:31:40   (   0.03,-137.08) (  -0.43,-135.14)  222.61                80
 04/21/2021   06:47:58   (  -0.03,-137.04) (  -0.65,-139.72)  305.97                80
 04/22/2021   06:29:58   (  -0.02,-137.01) (   0.50,-134.73)  260.69                80
 04/23/2021   18:46:09   (   0.02,-136.99) (   0.55,-139.28)  261.86                80
 04/24/2021   18:28:09   (   0.02,-136.96) (  -0.60,-134.30)  304.58                80