Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 9 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 09/10/2021   06:10:37   (   0.28,-128.21) (  -0.18,-130.24)  231.52                80
 09/11/2021   05:52:37   (   0.26,-128.19) (   0.93,-125.24)  336.72                80
 09/12/2021   18:08:48   (  -0.29,-128.12) (   0.09,-129.80)  190.74                80
 09/13/2021   17:50:49   (  -0.27,-128.11) (  -1.02,-124.80)  377.21                80
 09/15/2021   06:07:10   (   0.29,-128.12) (   0.03,-129.40)  145.32                80
 09/16/2021   05:49:10   (   0.27,-128.10) (   1.08,-124.40)  422.06                80
 09/17/2021   18:05:21   (  -0.30,-128.02) (  -0.07,-128.95)  106.55                80
 09/18/2021   17:47:22   (  -0.28,-128.01) (  -1.18,-123.96)  460.99                80
 09/20/2021   06:03:43   (   0.31,-128.02) (   0.19,-128.56)   61.38                80
 09/22/2021   18:01:55   (  -0.32,-127.92) (  -0.29,-128.13)   22.95                80