Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 1 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 01/08/2021   17:03:46   (   0.24,-128.17) (   0.75,-130.47)  261.93                80
 01/09/2021   16:45:47   (   0.26,-128.15) (  -0.35,-125.49)  303.85                80
 01/11/2021   05:02:07   (  -0.23,-128.13) (  -0.70,-130.12)  227.22                80
 01/12/2021   04:44:08   (  -0.26,-128.11) (   0.41,-125.14)  338.64                80
 01/13/2021   17:00:20   (   0.23,-128.08) (   0.58,-129.75)  188.99                80
 01/14/2021   16:42:20   (   0.26,-128.07) (  -0.46,-124.76)  376.51                80
 01/16/2021   04:58:41   (  -0.23,-128.04) (  -0.52,-129.40)  155.22                80
 01/17/2021   04:40:41   (  -0.25,-128.02) (   0.53,-124.41)  410.60                80
 01/18/2021   16:56:53   (   0.22,-127.99) (   0.46,-129.02)  116.88                80
 01/19/2021   16:38:53   (   0.24,-127.97) (  -0.65,-124.04)  448.47                80
 01/21/2021   04:55:14   (  -0.21,-127.94) (  -0.38,-128.67)   84.15                80