Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 1 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/06/2021   07:02:49   (  -0.08,-128.19) (  -0.15,-128.55)   41.42                80
 01/08/2021   06:53:17   (  -0.08,-128.16) (   0.48,-125.60)  292.29                80
 01/08/2021   19:11:53   (   0.05,-128.18) (   0.58,-130.76)  293.28                80
 01/10/2021   19:02:20   (   0.05,-128.15) (   0.00,-127.80)   39.59                80
 01/12/2021   18:50:08   (   0.06,-128.11) (  -0.64,-124.84)  371.94                80
 01/13/2021   07:08:52   (  -0.03,-128.08) (  -0.47,-130.03)  222.92                80
 01/15/2021   06:59:20   (  -0.03,-128.04) (   0.17,-127.08)  109.44                80
 01/15/2021   19:17:56   (  -0.00,-128.06) (   0.88,-132.24)  475.81                80
 01/17/2021   06:47:07   (  -0.05,-128.00) (   0.76,-124.11)  441.92                80
 01/17/2021   19:05:43   (   0.01,-128.02) (   0.30,-129.28)  143.47                80
 01/19/2021   18:56:11   (   0.01,-127.98) (  -0.35,-126.32)  188.62                80