Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 4 19.  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)
 04/20/2021   16:53:04   (   0.10,-127.88) (   0.62,-130.25)  269.20                80
 04/21/2021   16:35:04   (   0.10,-127.85) (  -0.48,-125.27)  293.85                80
 04/23/2021   04:54:05   (  -0.09,-127.69) (  -0.57,-129.90)  251.59                80
 04/24/2021   04:30:44   (  -0.10,-127.65) (   0.48,-124.92)  311.08                80
 04/25/2021   16:49:37   (   0.09,-127.69) (   0.50,-129.53)  209.31                80
 04/26/2021   16:31:37   (   0.09,-127.65) (  -0.61,-124.55)  353.24                80
 04/28/2021   04:50:37   (  -0.09,-127.49) (  -0.44,-129.18)  193.02                80
 04/29/2021   04:27:17   (  -0.09,-127.44) (   0.60,-124.20)  368.74                80
 04/30/2021   16:46:09   (   0.08,-127.46) (   0.37,-128.81)  153.42                80
 05/01/2021   16:28:10   (   0.08,-127.41) (  -0.73,-123.83)  408.24                80