Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 7 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)
 07/04/2021   06:19:56   (   0.12,-128.16) (  -0.70,-131.91)  426.95                80
 07/05/2021   05:56:37   (   0.13,-128.13) (   0.39,-126.91)  138.74                80
 07/06/2021   18:15:29   (  -0.12,-128.08) (   0.64,-131.47)  386.45                80
 07/07/2021   17:57:31   (  -0.13,-128.05) (  -0.51,-126.48)  179.54                80
 07/09/2021   06:16:30   (   0.12,-128.01) (  -0.59,-131.06)  347.72                80
 07/10/2021   05:53:11   (   0.13,-127.98) (   0.55,-126.07)  217.07                80
 07/11/2021   18:12:04   (  -0.12,-127.91) (   0.47,-130.63)  310.02                80
 07/12/2021   17:54:04   (  -0.13,-127.87) (  -0.61,-125.63)  255.21                80
 07/14/2021   06:13:05   (   0.13,-127.84) (  -0.42,-130.22)  272.09                80
 07/15/2021   05:49:46   (   0.14,-127.80) (   0.73,-125.23)  292.23                80
 07/16/2021   18:08:37   (  -0.13,-127.71) (   0.36,-129.78)  236.19                80