Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-C
TLE Epoch: 2021 1 16.  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)
 01/16/2021   18:06:21   (   0.12,-128.02) (   0.31,-128.90)   99.95                80
 01/17/2021   17:48:21   (   0.14,-128.00) (  -0.78,-123.90)  467.31                80
 01/19/2021   06:04:43   (  -0.11,-127.95) (  -0.26,-128.50)   63.12                80
 01/21/2021   18:02:56   (   0.09,-127.91) (   0.11,-128.07)   18.12                80
 01/24/2021   06:03:57   (  -0.07,-127.82) (  -0.05,-127.67)   16.80                80
 01/26/2021   18:02:09   (   0.06,-127.76) (  -0.04,-127.23)   60.16                80
 01/28/2021   06:18:32   (  -0.02,-127.68) (  -0.94,-131.84)  473.37                80
 01/29/2021   06:00:32   (  -0.05,-127.65) (   0.16,-126.84)   92.82                80