Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 10 7.  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)
 10/07/2021   17:54:14   (  -0.34,-127.93) (  -0.85,-125.62)  263.20                80
 10/09/2021   06:10:35   (   0.35,-127.98) (  -0.16,-130.22)  255.35                80
 10/10/2021   05:52:36   (   0.34,-128.01) (   0.99,-125.23)  317.07                80
 10/11/2021   18:08:48   (  -0.35,-128.05) (   0.06,-129.79)  198.92                80
 10/12/2021   17:50:49   (  -0.34,-128.07) (  -1.09,-124.80)  373.20                80
 10/14/2021   06:07:11   (   0.35,-128.11) (   0.08,-129.40)  146.27                80
 10/15/2021   05:49:11   (   0.34,-128.14) (   1.17,-124.40)  425.57                80
 10/16/2021   18:05:23   (  -0.35,-128.17) (  -0.17,-128.97)   90.93                80
 10/17/2021   17:47:24   (  -0.34,-128.20) (  -1.26,-123.97)  480.99                80
 10/19/2021   06:03:45   (   0.35,-128.24) (   0.26,-128.57)   38.27                80