Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 1 12.  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)
 01/12/2021   04:44:08   (  -0.26,-128.11) (   0.40,-125.14)  338.48                80
 01/13/2021   17:00:20   (   0.23,-128.08) (   0.59,-129.75)  189.66                80
 01/14/2021   16:42:20   (   0.26,-128.06) (  -0.46,-124.76)  375.71                80
 01/16/2021   04:58:41   (  -0.23,-128.03) (  -0.53,-129.40)  155.88                80
 01/17/2021   04:40:40   (  -0.25,-128.01) (   0.52,-124.41)  409.84                80
 01/18/2021   16:56:53   (   0.22,-127.98) (   0.47,-129.02)  118.11                80
 01/19/2021   16:38:53   (   0.24,-127.96) (  -0.64,-124.04)  447.12                80
 01/21/2021   04:55:14   (  -0.21,-127.93) (  -0.39,-128.67)   85.42                80
 01/22/2021   04:37:14   (  -0.23,-127.90) (   0.72,-123.70)  479.85                80
 01/23/2021   16:53:26   (   0.20,-127.87) (   0.27,-128.30)   48.82                80