Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 4 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 04/07/2021   06:43:33   (  -0.11,-128.17) (   0.73,-124.10)  461.76                80
 04/07/2021   19:04:49   (   0.10,-128.24) (   0.32,-129.27)  116.71                80
 04/09/2021   18:55:17   (   0.10,-128.20) (  -0.33,-126.32)  214.86                80
 04/10/2021   07:16:39   (  -0.09,-128.11) (  -0.83,-131.50)  385.67                80
 04/12/2021   07:04:27   (  -0.10,-128.07) (  -0.18,-128.55)   54.52                80
 04/14/2021   06:49:35   (  -0.10,-128.02) (   0.42,-125.59)  276.16                80
 04/14/2021   19:10:50   (   0.09,-128.08) (   0.63,-130.76)  303.66                80
 04/16/2021   19:01:17   (   0.09,-128.02) (   0.03,-127.79)   26.18                80
 04/18/2021   18:49:04   (   0.08,-127.96) (  -0.57,-124.83)  355.37                80
 04/19/2021   07:10:28   (  -0.07,-127.87) (  -0.53,-130.03)  244.81                80