Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 4 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)
 04/10/2021   07:16:40   (  -0.09,-128.11) (  -0.83,-131.50)  385.90                80
 04/12/2021   07:04:28   (  -0.09,-128.06) (  -0.17,-128.55)   55.08                80
 04/14/2021   06:49:35   (  -0.09,-128.01) (   0.43,-125.59)  275.31                80
 04/14/2021   19:10:50   (   0.09,-128.07) (   0.62,-130.76)  304.75                80
 04/16/2021   19:01:17   (   0.08,-128.01) (   0.02,-127.80)   24.84                80
 04/18/2021   18:49:05   (   0.08,-127.95) (  -0.58,-124.84)  353.68                80
 04/19/2021   07:10:28   (  -0.07,-127.86) (  -0.52,-130.03)  246.48                80
 04/21/2021   06:55:35   (  -0.07,-127.79) (   0.09,-127.07)   81.63                80
 04/23/2021   06:43:22   (  -0.07,-127.71) (   0.70,-124.11)  409.45                80
 04/23/2021   19:04:37   (   0.06,-127.76) (   0.41,-129.27)  172.26                80