Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2019 12 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/19/2019   07:05:41   (   0.09,-127.99) (  -0.01,-128.59)   67.40                80
 12/21/2019   06:50:51   (   0.09,-128.05) (   0.63,-125.63)  275.78                80
 12/21/2019   19:14:45   (  -0.07,-128.03) (   0.50,-130.78)  312.57                80
 12/23/2019   18:59:54   (  -0.08,-128.09) (  -0.15,-127.83)   29.99                80
 12/25/2019   18:47:43   (  -0.08,-128.15) (  -0.80,-124.88)  372.06                80
 12/26/2019   07:11:47   (   0.07,-128.20) (  -0.31,-130.07)  212.32                80
 12/28/2019   06:56:55   (   0.07,-128.25) (   0.28,-127.10)  129.39                80
 12/28/2019   19:20:51   (  -0.05,-128.22) (   0.79,-132.27)  459.58                80
 12/30/2019   06:44:44   (   0.06,-128.29) (   0.94,-124.15)  470.91                80
 12/30/2019   19:08:39   (  -0.05,-128.27) (   0.19,-129.30)  118.08                80
 01/01/2020   18:53:48   (  -0.05,-128.31) (  -0.46,-126.35)  223.30                80