Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2019 12 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/21/2019   06:50:50   (   0.09,-128.05) (   0.59,-125.62)  275.72                80
 12/21/2019   19:14:46   (  -0.07,-128.03) (   0.48,-130.79)  312.67                80
 12/23/2019   18:59:54   (  -0.08,-128.09) (  -0.10,-127.82)   29.96                80
 12/25/2019   18:47:43   (  -0.08,-128.14) (  -0.76,-124.87)  371.75                80
 12/26/2019   07:11:46   (   0.07,-128.19) (  -0.36,-130.06)  212.69                80
 12/28/2019   06:56:56   (   0.07,-128.24) (   0.30,-127.11)  128.89                80
 12/28/2019   19:20:50   (  -0.05,-128.22) (   0.84,-132.26)  460.05                80
 12/30/2019   06:44:45   (   0.06,-128.29) (   0.95,-124.15)  470.33                80
 12/30/2019   19:08:39   (  -0.05,-128.26) (   0.18,-129.30)  118.62                80
 01/01/2020   18:53:48   (  -0.05,-128.31) (  -0.47,-126.35)  222.60                80
 01/02/2020   07:17:52   (   0.04,-128.36) (  -0.64,-131.54)  361.87                80