Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 12 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)
 12/20/2021   07:22:03   (   0.03,-137.20) (   0.53,-134.88)  263.84                80
 12/20/2021   19:43:18   (  -0.03,-137.20) (   0.55,-140.04)  321.85                80
 12/22/2021   19:33:43   (  -0.02,-137.19) (  -0.02,-137.07)   13.74                80
 12/24/2021   19:21:29   (  -0.02,-137.18) (  -0.66,-134.12)  348.10                80
 12/25/2021   07:42:53   (   0.02,-137.17) (  -0.42,-139.31)  243.49                80
 12/27/2021   07:27:58   (   0.02,-137.15) (   0.16,-136.35)   90.68                80
 12/27/2021   19:49:13   (  -0.01,-137.15) (   0.92,-141.51)  495.75                80
 12/29/2021   07:15:44   (   0.02,-137.12) (   0.81,-133.39)  424.01                80
 12/29/2021   19:36:59   (  -0.02,-137.12) (   0.27,-138.55)  162.65                80
 12/31/2021   19:27:24   (  -0.02,-137.08) (  -0.33,-135.59)  169.52                80
 01/01/2022   07:48:47   (   0.02,-137.07) (  -0.80,-140.78)  422.57                80