Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 7 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 07/31/2021   07:14:52   (   0.02,-127.90) (  -0.76,-131.50)  409.29                80
 08/02/2021   07:02:39   (   0.02,-127.96) (  -0.12,-128.54)   67.30                80
 08/04/2021   06:47:47   (   0.03,-128.00) (   0.51,-125.59)  274.02                80
 08/04/2021   19:11:41   (   0.00,-127.93) (   0.58,-130.75)  319.31                80
 08/06/2021   18:56:48   (  -0.01,-127.98) (  -0.06,-127.79)   21.41                80
 08/08/2021   18:44:35   (  -0.02,-128.02) (  -0.70,-124.84)  361.62                80
 08/09/2021   07:08:38   (  -0.01,-128.11) (  -0.44,-130.02)  217.90                80
 08/11/2021   06:53:45   (   0.00,-128.15) (   0.21,-127.07)  121.75                80
 08/11/2021   19:17:40   (   0.03,-128.06) (   0.89,-132.23)  472.84                80
 08/13/2021   06:41:32   (   0.01,-128.18) (   0.86,-124.12)  461.06                80
 08/13/2021   19:05:27   (   0.02,-128.09) (   0.24,-129.27)  133.57                80