Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 4 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 04/30/2021   06:49:22   (  -0.04,-127.42) (   0.38,-125.59)  209.24                80
 04/30/2021   19:10:37   (   0.03,-127.47) (   0.72,-130.74)  372.28                80
 05/02/2021   18:58:24   (   0.03,-127.38) (   0.09,-127.79)   46.29                80
 05/04/2021   18:48:50   (   0.02,-127.28) (  -0.49,-124.82)  279.79                80
 05/05/2021   07:10:14   (  -0.02,-127.20) (  -0.60,-130.02)  320.37                80
 05/07/2021   06:55:20   (  -0.02,-127.10) (  -0.02,-127.05)    5.74                80
 05/09/2021   06:43:06   (  -0.02,-127.00) (   0.57,-124.08)  331.52                80
 05/09/2021   19:04:22   (   0.02,-127.04) (   0.47,-129.25)  251.46                80
 05/11/2021   18:54:48   (   0.02,-126.94) (  -0.12,-126.29)   73.96                80