Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2020 12 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 12/30/2020   16:52:39   (   0.27,-128.25) (   0.00,-126.92)  150.20                80
 01/01/2021   05:09:00   (  -0.26,-128.24) (  -1.00,-131.56)  378.85                80
 01/02/2021   04:51:01   (  -0.27,-128.23) (   0.10,-126.59)  187.80                80
 01/03/2021   17:07:13   (   0.26,-128.21) (   0.89,-131.19)  338.79                80
 01/04/2021   16:49:13   (   0.27,-128.20) (  -0.15,-126.20)  227.42                80
 01/06/2021   05:05:34   (  -0.25,-128.19) (  -0.84,-130.84)  302.73                80
 01/07/2021   04:47:35   (  -0.27,-128.17) (   0.26,-125.87)  263.39                80
 01/08/2021   17:03:47   (   0.24,-128.15) (   0.73,-130.47)  264.07                80
 01/09/2021   16:45:46   (   0.26,-128.13) (  -0.31,-125.48)  301.41                80
 01/11/2021   05:02:08   (  -0.23,-128.10) (  -0.67,-130.12)  230.24                80
 01/12/2021   04:44:07   (  -0.26,-128.08) (   0.37,-125.13)  335.22                80