Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 1 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/12/2021   18:50:08   (   0.06,-128.11) (  -0.64,-124.84)  371.81                80
 01/13/2021   07:08:52   (  -0.03,-128.08) (  -0.47,-130.03)  223.10                80
 01/15/2021   06:59:20   (  -0.03,-128.04) (   0.17,-127.08)  109.18                80
 01/15/2021   19:17:56   (  -0.00,-128.06) (   0.88,-132.24)  475.98                80
 01/17/2021   06:47:07   (  -0.05,-128.00) (   0.75,-124.11)  441.61                80
 01/17/2021   19:05:43   (   0.01,-128.02) (   0.30,-129.28)  143.71                80
 01/19/2021   18:56:11   (   0.01,-127.98) (  -0.35,-126.32)  188.29                80
 01/20/2021   07:14:55   (   0.02,-127.94) (  -0.76,-131.52)  407.47                80
 01/22/2021   07:02:43   (   0.02,-127.89) (  -0.11,-128.56)   75.97                80
 01/24/2021   06:53:10   (   0.02,-127.84) (   0.49,-125.60)  254.79                80
 01/24/2021   19:11:46   (  -0.06,-127.86) (   0.57,-130.76)  330.39                80