Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 1 3.  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)
 01/03/2021   17:07:13   (   0.26,-128.22) (   0.90,-131.19)  338.11                80
 01/04/2021   16:49:13   (   0.27,-128.21) (  -0.14,-126.20)  228.27                80
 01/06/2021   05:05:34   (  -0.25,-128.20) (  -0.85,-130.84)  301.80                80
 01/07/2021   04:47:34   (  -0.27,-128.18) (   0.25,-125.86)  264.52                80
 01/08/2021   17:03:47   (   0.24,-128.16) (   0.74,-130.47)  262.44                80
 01/09/2021   16:45:46   (   0.26,-128.15) (  -0.30,-125.48)  303.20                80
 01/11/2021   05:02:08   (  -0.23,-128.12) (  -0.69,-130.12)  228.43                80
 01/12/2021   04:44:08   (  -0.26,-128.10) (   0.41,-125.14)  337.23                80
 01/13/2021   17:00:20   (   0.23,-128.07) (   0.58,-129.75)  190.41                80
 01/14/2021   16:42:20   (   0.26,-128.05) (  -0.46,-124.76)  374.93                80
 01/16/2021   04:58:41   (  -0.23,-128.02) (  -0.52,-129.40)  157.31                80