Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2017 11 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/25/2017   07:21:01   (   0.01, -89.36) (  -0.00, -89.31)    5.69                80
 11/27/2017   19:24:12   (  -0.01, -89.40) (  -0.19, -90.08)   78.03                80
 11/28/2017   19:08:07   (  -0.01, -89.41) (   0.85, -85.55)  440.06                80
 11/30/2017   07:29:54   (   0.01, -89.43) (   0.32, -90.82)  158.95                80
 12/01/2017   07:08:29   (   0.01, -89.44) (  -0.67, -86.28)  359.01                80
 12/02/2017   19:30:25   (  -0.01, -89.47) (  -0.49, -91.59)  242.33                80
 12/03/2017   19:14:21   (  -0.01, -89.48) (   0.55, -87.07)  275.77                80
 12/05/2017   07:36:08   (   0.01, -89.50) (   0.62, -92.34)  323.06                80
 12/06/2017   07:14:43   (   0.01, -89.52) (  -0.36, -87.80)  194.88                80