Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 6 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 06/22/2021   19:31:13   (   0.02,-137.20) (  -0.30,-135.58)  183.45                80
 06/23/2021   07:49:57   (  -0.02,-137.19) (  -0.79,-140.77)  407.40                80
 06/25/2021   07:40:24   (  -0.02,-137.19) (  -0.15,-137.82)   71.72                80
 06/27/2021   07:25:31   (  -0.02,-137.18) (   0.49,-134.87)  263.52                80
 06/27/2021   19:46:46   (   0.02,-137.18) (   0.61,-140.02)  323.01                80
 06/29/2021   19:37:12   (   0.02,-137.17) (   0.02,-137.06)   12.42                80
 07/01/2021   19:24:59   (   0.02,-137.16) (  -0.63,-134.10)  347.02                80
 07/02/2021   07:46:23   (  -0.01,-137.15) (  -0.46,-139.30)  243.92                80
 07/04/2021   07:31:29   (  -0.02,-137.13) (   0.14,-136.34)   90.52                80
 07/04/2021   19:52:43   (   0.01,-137.13) (   0.96,-141.49)  496.54                80