Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 8 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 08/24/2021   18:44:17   (   0.06,-128.23) (  -0.63,-124.82)  386.88                80
 08/25/2021   07:08:20   (  -0.10,-128.31) (  -0.46,-130.02)  193.69                80
 08/27/2021   06:53:27   (  -0.09,-128.32) (   0.15,-127.05)  143.56                80
 08/27/2021   19:17:21   (   0.12,-128.24) (   0.93,-132.21)  450.95                80
 08/29/2021   06:41:14   (  -0.08,-128.33) (   0.83,-124.11)  480.36                80
 08/29/2021   19:05:07   (   0.12,-128.25) (   0.32,-129.25)  114.20                80
 08/31/2021   18:50:13   (   0.11,-128.24) (  -0.29,-126.29)  221.88                80
 09/01/2021   07:14:17   (  -0.14,-128.33) (  -0.79,-131.49)  358.68                80
 09/03/2021   07:02:03   (  -0.14,-128.32) (  -0.17,-128.53)   23.43                80
 09/05/2021   06:47:09   (  -0.13,-128.30) (   0.46,-125.57)  311.42                80
 09/05/2021   19:11:03   (   0.16,-128.21) (   0.69,-130.71)  284.04                80