Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 10 28.  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)
 10/28/2021   06:20:13   (   0.33,-128.37) (  -0.46,-131.91)  403.35                80
 10/29/2021   05:59:33   (   0.33,-128.38) (   0.64,-126.92)  166.82                80
 10/30/2021   18:15:46   (  -0.32,-128.41) (   0.36,-131.48)  350.17                80
 10/31/2021   17:57:46   (  -0.32,-128.42) (  -0.74,-126.49)  219.81                80
 11/02/2021   06:16:46   (   0.32,-128.42) (  -0.29,-131.08)  304.20                80
 11/03/2021   05:53:27   (   0.32,-128.42) (   0.81,-126.09)  265.39                80
 11/04/2021   18:12:19   (  -0.32,-128.44) (   0.19,-130.65)  252.65                80
 11/05/2021   17:54:20   (  -0.32,-128.44) (  -0.91,-125.66)  316.53                80
 11/07/2021   06:13:20   (   0.31,-128.42) (  -0.10,-130.25)  208.68                80
 11/08/2021   05:50:01   (   0.31,-128.42) (   1.00,-125.26)  359.91                80
 11/09/2021   18:08:53   (  -0.30,-128.42) (   0.01,-129.82)  159.55                80
 11/10/2021   17:50:53   (  -0.30,-128.41) (  -1.10,-124.82)  408.91                80