Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2019 9 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/20/2019   18:50:31   (  -0.30,-127.96) (  -0.92,-124.91)  346.95                80
 09/21/2019   07:09:15   (   0.31,-127.91) (  -0.14,-130.11)  249.41                80
 09/23/2019   06:59:43   (   0.30,-127.84) (   0.44,-127.15)   78.88                80
 09/25/2019   06:47:32   (   0.30,-127.76) (   1.03,-124.18)  406.53                80
 09/25/2019   19:06:07   (  -0.31,-127.77) (   0.04,-129.35)  179.16                80
 09/27/2019   18:56:36   (  -0.31,-127.69) (  -0.61,-126.40)  148.17                80
 09/28/2019   07:18:00   (   0.32,-127.65) (  -0.51,-131.59)  447.40                80
 09/29/2019   18:44:24   (  -0.31,-127.61) (  -1.20,-123.43)  475.28                80
 09/30/2019   07:05:48   (   0.32,-127.57) (   0.09,-128.62)  120.44                80
 10/02/2019   06:50:56   (   0.31,-127.48) (   0.69,-125.66)  206.17                80
 10/02/2019   19:12:12   (  -0.32,-127.48) (   0.38,-130.83)  380.82                80