Simultaneous Nadir Overpasses (SNOs) between GOES-16 and METOP-B
TLE Epoch: 2021 9 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 09/21/2021   02:20:07   (  -0.07, -75.19) (   0.49, -72.71)  283.43                80
 09/22/2021   14:41:38   (   0.09, -75.21) (   0.51, -77.27)  234.14                80
 09/23/2021   14:18:18   (   0.08, -75.21) (  -0.60, -72.27)  335.07                80
 09/25/2021   02:39:59   (  -0.09, -75.19) (  -0.45, -76.86)  189.77                80
 09/26/2021   02:16:39   (  -0.09, -75.20) (   0.66, -71.87)  379.56                80
 09/27/2021   14:38:11   (   0.10, -75.22) (   0.35, -76.43)  137.30                80
 09/28/2021   14:14:51   (   0.10, -75.22) (  -0.77, -71.43)  432.36                80
 09/30/2021   02:36:31   (  -0.11, -75.21) (  -0.28, -76.02)   91.78                80
 10/01/2021   02:13:12   (  -0.11, -75.22) (   0.84, -71.03)  477.98                80
 10/02/2021   14:34:43   (   0.12, -75.24) (   0.17, -75.59)   38.34                80