Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2020 12 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/11/2020   18:50:17   (   0.19,-128.15) (  -0.54,-124.81)  380.15                80
 12/12/2020   07:09:01   (  -0.17,-128.17) (  -0.56,-130.00)  208.39                80
 12/14/2020   06:59:28   (  -0.17,-128.20) (   0.05,-127.04)  131.21                80
 12/14/2020   19:18:04   (   0.15,-128.19) (   1.00,-132.20)  455.97                80
 12/16/2020   06:47:16   (  -0.18,-128.22) (   0.73,-124.09)  470.45                80
 12/16/2020   19:05:51   (   0.16,-128.21) (   0.38,-129.24)  116.87                80
 12/18/2020   18:56:18   (   0.17,-128.23) (  -0.24,-126.28)  222.16                80
 12/19/2020   07:15:01   (  -0.14,-128.25) (  -0.85,-131.47)  367.23                80
 12/21/2020   07:02:49   (  -0.15,-128.27) (  -0.23,-128.51)   28.21                80
 12/23/2020   06:53:16   (  -0.16,-128.29) (   0.40,-125.55)  310.68                80
 12/23/2020   19:11:51   (   0.13,-128.29) (   0.64,-130.72)  276.34                80