Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 9 3.  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)
 09/03/2021   17:57:42   (  -0.22,-128.22) (  -0.64,-126.47)  199.78                80
 09/05/2021   06:14:03   (   0.26,-128.25) (  -0.35,-131.08)  321.83                80
 09/06/2021   05:56:03   (   0.23,-128.24) (   0.70,-126.07)  246.72                80
 09/07/2021   18:12:15   (  -0.27,-128.18) (   0.27,-130.64)  279.86                80
 09/08/2021   17:54:16   (  -0.25,-128.17) (  -0.84,-125.64)  288.70                80
 09/10/2021   06:10:37   (   0.28,-128.19) (  -0.15,-130.24)  233.29                80
 09/11/2021   05:52:37   (   0.26,-128.17) (   0.90,-125.23)  334.66                80
 09/12/2021   18:08:49   (  -0.29,-128.10) (   0.06,-129.80)  193.25                80
 09/13/2021   17:50:48   (  -0.27,-128.08) (  -0.99,-124.79)  374.40                80
 09/15/2021   06:07:10   (   0.29,-128.09) (  -0.00,-129.40)  148.65                80
 09/16/2021   05:49:10   (   0.27,-128.07) (   1.11,-124.40)  418.39                80