Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 4 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 04/03/2021   15:23:30   (   0.11,-128.33) (   0.54,-130.17)  209.40                80
 04/04/2021   15:09:07   (   0.11,-128.31) (  -0.12,-127.30)  115.32                80
 04/05/2021   14:57:23   (   0.11,-128.30) (  -0.77,-124.44)  440.03                80
 04/07/2021   03:30:02   (  -0.11,-128.17) (  -1.08,-132.24)  465.27                80
 04/08/2021   03:18:18   (  -0.11,-128.15) (  -0.40,-129.38)  140.24                80
 04/09/2021   03:09:15   (  -0.11,-128.13) (   0.28,-126.52)  184.81                80
 04/11/2021   15:30:06   (   0.12,-128.19) (   0.89,-131.45)  372.61                80
 04/12/2021   15:18:23   (   0.11,-128.17) (   0.23,-128.58)   48.08                80
 04/13/2021   15:04:00   (   0.11,-128.14) (  -0.43,-125.72)  276.37                80
 04/16/2021   03:24:52   (  -0.11,-127.98) (  -0.75,-130.65)  305.53                80