Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 4 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 04/14/2021   06:49:35   (  -0.09,-128.01) (   0.42,-125.59)  275.13                80
 04/14/2021   19:10:50   (   0.08,-128.07) (   0.63,-130.76)  305.16                80
 04/16/2021   19:01:17   (   0.08,-128.01) (   0.03,-127.79)   24.20                80
 04/18/2021   18:49:04   (   0.08,-127.94) (  -0.58,-124.83)  352.90                80
 04/19/2021   07:10:28   (  -0.07,-127.85) (  -0.52,-130.03)  247.13                80
 04/21/2021   06:55:35   (  -0.07,-127.78) (   0.09,-127.07)   80.79                80
 04/23/2021   06:43:22   (  -0.07,-127.70) (   0.70,-124.11)  408.44                80
 04/23/2021   19:04:37   (   0.06,-127.74) (   0.41,-129.27)  173.51                80
 04/25/2021   18:55:04   (   0.06,-127.66) (  -0.21,-126.31)  153.86                80
 04/26/2021   07:16:28   (  -0.06,-127.59) (  -0.89,-131.50)  445.19                80