Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 4 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 04/19/2021   19:32:15   (   0.04,-137.20) (  -0.28,-135.59)  182.63                80
 04/20/2021   07:53:38   (  -0.04,-137.20) (  -0.82,-140.78)  408.00                80
 04/22/2021   07:41:26   (  -0.03,-137.19) (  -0.15,-137.84)   72.32                80
 04/24/2021   07:26:33   (  -0.03,-137.19) (   0.47,-134.88)  263.07                80
 04/24/2021   19:47:48   (   0.03,-137.19) (   0.64,-140.03)  323.55                80
 04/26/2021   19:38:15   (   0.03,-137.17) (   0.02,-137.07)   11.14                80
 04/28/2021   19:26:02   (   0.03,-137.15) (  -0.60,-134.12)  344.88                80
 04/29/2021   07:47:26   (  -0.03,-137.15) (  -0.49,-139.31)  246.36                80
 05/01/2021   07:32:33   (  -0.02,-137.11) (   0.14,-136.36)   86.24                80