Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 12 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/19/2021   06:38:55   (   0.12,-127.79) (   0.89,-124.14)  415.32                80
 12/19/2021   19:02:50   (  -0.11,-127.81) (   0.20,-129.30)  168.64                80
 12/21/2021   18:47:56   (  -0.11,-127.88) (  -0.43,-126.34)  174.34                80
 12/22/2021   07:11:58   (   0.09,-127.89) (  -0.71,-131.53)  414.21                80
 12/24/2021   06:59:44   (   0.09,-127.95) (  -0.08,-128.57)   71.71                80
 12/26/2021   06:44:51   (   0.09,-128.00) (   0.57,-125.62)  270.62                80
 12/26/2021   19:08:45   (  -0.07,-128.02) (   0.52,-130.78)  313.99                80
 12/28/2021   18:53:51   (  -0.08,-128.07) (  -0.13,-127.82)   27.63                80
 12/30/2021   18:41:37   (  -0.08,-128.11) (  -0.78,-124.87)  368.45                80
 12/31/2021   07:05:40   (   0.06,-128.12) (  -0.34,-130.06)  220.48                80