Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 12 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/14/2021   18:42:00   (  -0.14,-127.78) (  -0.76,-124.87)  331.69                80
 12/15/2021   07:06:03   (   0.12,-127.74) (  -0.36,-130.05)  263.40                80
 12/17/2021   06:51:08   (   0.12,-127.66) (   0.25,-127.09)   64.63                80
 12/19/2021   06:38:53   (   0.12,-127.57) (   0.87,-124.13)  392.10                80
 12/19/2021   19:02:47   (  -0.11,-127.58) (   0.26,-129.28)  193.44                80
 12/21/2021   18:47:52   (  -0.11,-127.49) (  -0.36,-126.32)  133.44                80
 12/22/2021   07:11:55   (   0.09,-127.44) (  -0.76,-131.51)  461.86                80
 12/23/2021   18:35:37   (  -0.10,-127.40) (  -0.99,-123.36)  460.00                80
 12/24/2021   06:59:39   (   0.09,-127.35) (  -0.19,-128.53)  135.46                80
 12/26/2021   06:44:44   (   0.09,-127.25) (   0.44,-125.57)  190.69                80
 12/26/2021   19:08:38   (  -0.07,-127.25) (   0.69,-130.72)  395.54                80