Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2021 1 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-C Lat/Lon    Distance(km)  Time Diff(sec)
 01/04/2021   06:14:59   (  -0.17,-128.21) (  -0.81,-131.00)  318.11                80
 01/05/2021   05:57:00   (  -0.19,-128.20) (   0.28,-126.00)  250.64                80
 01/06/2021   18:13:12   (   0.16,-128.19) (   0.68,-130.57)  270.23                80
 01/07/2021   17:55:12   (   0.18,-128.18) (  -0.41,-125.57)  297.89                80
 01/09/2021   06:11:35   (  -0.14,-128.15) (  -0.57,-130.18)  230.60                80
 01/10/2021   05:53:35   (  -0.16,-128.13) (   0.52,-125.18)  337.39                80
 01/11/2021   18:09:47   (   0.13,-128.12) (   0.49,-129.74)  184.42                80
 01/12/2021   17:51:47   (   0.16,-128.10) (  -0.60,-124.74)  383.08                80
 01/14/2021   06:08:08   (  -0.13,-128.05) (  -0.44,-129.33)  146.51                80
 01/15/2021   05:50:09   (  -0.15,-128.03) (   0.66,-124.33)  421.27                80
 01/16/2021   18:06:21   (   0.12,-128.02) (   0.29,-128.90)  100.49                80