Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 1 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/17/2021   06:47:07   (  -0.04,-127.99) (   0.76,-124.11)  440.55                80
 01/17/2021   19:05:43   (   0.01,-128.01) (   0.29,-129.28)  144.88                80
 01/19/2021   18:56:11   (   0.01,-127.96) (  -0.36,-126.33)  186.58                80
 01/20/2021   07:14:55   (   0.03,-127.92) (  -0.75,-131.52)  409.34                80
 01/22/2021   07:02:43   (   0.02,-127.87) (  -0.10,-128.57)   78.44                80
 01/24/2021   06:53:10   (   0.02,-127.81) (   0.50,-125.60)  251.82                80
 01/24/2021   19:11:46   (  -0.06,-127.83) (   0.55,-130.77)  333.48                80
 01/26/2021   18:59:33   (  -0.05,-127.77) (  -0.04,-127.80)    4.06                80
 01/28/2021   18:50:00   (  -0.04,-127.70) (  -0.64,-124.84)  324.77                80
 01/29/2021   07:08:44   (   0.08,-127.64) (  -0.45,-130.03)  272.39                80