Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 7 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 07/23/2018   07:17:26   (   0.02,-135.49) (   0.71,-132.13)  381.44                80
 07/23/2018   19:41:22   (   0.01,-135.53) (   0.36,-137.30)  200.65                80
 07/25/2018   19:26:30   (   0.00,-135.52) (  -0.25,-134.34)  134.72                80
 07/26/2018   07:50:33   (  -0.04,-135.49) (  -0.92,-139.51)  458.48                80
 07/27/2018   19:14:18   (  -0.00,-135.51) (  -0.86,-131.38)  469.61                80
 07/28/2018   07:38:22   (  -0.03,-135.47) (  -0.24,-136.57)  123.72                80
 07/30/2018   07:23:30   (  -0.02,-135.46) (   0.38,-133.61)  210.57                80
 07/30/2018   19:47:25   (   0.06,-135.49) (   0.75,-138.76)  371.95                80
 08/01/2018   19:35:13   (   0.05,-135.47) (   0.13,-135.80)   38.15                80
 08/03/2018   19:20:21   (   0.04,-135.44) (  -0.50,-132.84)  295.03                80
 08/04/2018   07:44:24   (  -0.08,-135.40) (  -0.65,-138.02)  298.60                80