Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 4 14.  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) (   0.43,-125.59)  275.14                80
 04/14/2021   19:10:50   (   0.08,-128.07) (   0.68,-130.75)  305.22                80
 04/16/2021   19:01:18   (   0.08,-128.01) (   0.02,-127.80)   24.20                80
 04/18/2021   18:49:05   (   0.08,-127.94) (  -0.59,-124.84)  352.78                80
 04/19/2021   07:10:28   (  -0.07,-127.85) (  -0.51,-130.03)  247.21                80
 04/21/2021   06:55:35   (  -0.07,-127.78) (   0.10,-127.07)   80.71                80
 04/23/2021   06:43:23   (  -0.07,-127.70) (   0.71,-124.11)  408.32                80
 04/23/2021   19:04:37   (   0.06,-127.74) (   0.40,-129.27)  173.68                80
 04/25/2021   18:55:04   (   0.06,-127.66) (  -0.22,-126.31)  153.63                80
 04/26/2021   07:16:28   (  -0.06,-127.58) (  -0.87,-131.50)  445.37                80
 04/27/2021   18:42:51   (   0.07,-127.58) (  -0.84,-123.35)  480.36                80