Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 12 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)
 12/28/2021   17:54:51   (  -0.10,-128.08) (  -0.48,-126.43)  188.87                80
 12/30/2021   06:16:30   (   0.09,-128.11) (  -0.57,-131.02)  331.25                80
 12/31/2021   05:53:11   (   0.10,-128.13) (   0.57,-126.03)  240.09                80
 01/01/2022   18:14:42   (  -0.08,-128.17) (   0.42,-130.59)  275.10                80
 01/02/2022   17:51:21   (  -0.09,-128.19) (  -0.65,-125.59)  295.97                80
 01/04/2022   06:13:02   (   0.08,-128.21) (  -0.34,-130.19)  225.33                80
 01/05/2022   05:49:41   (   0.08,-128.22) (   0.74,-125.19)  345.62                80
 01/06/2022   18:11:13   (  -0.06,-128.26) (   0.24,-129.75)  169.90                80
 01/07/2022   17:47:52   (  -0.07,-128.28) (  -0.84,-124.75)  401.17                80
 01/09/2022   06:09:32   (   0.06,-128.29) (  -0.15,-129.35)  120.09                80
 01/10/2022   05:46:12   (   0.06,-128.31) (   0.93,-124.35)  450.75                80