Simultaneous Nadir Overpasses (SNOs) between METOP-A and NPP
TLE Epoch: 2018 1 9.  Predictions up to the next  14.0 days:

     Date     Time(METOP-A) METOP-A Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/09/2018   15:25:32   ( -73.00, 119.68) 01/09/2018   15:26:20  ( -73.00, 119.70)    0.65                48
 01/09/2018   16:16:12   (  72.98, -73.03) 01/09/2018   16:17:06  (  73.01, -73.00)    3.12                54
 01/09/2018   17:06:53   ( -73.03,  94.40) 01/09/2018   17:07:50  ( -73.01,  94.31)    3.32                57
 01/09/2018   17:57:33   (  73.00, -98.32) 01/09/2018   17:58:36  (  73.01, -98.39)    2.41                63
 01/09/2018   18:48:15   ( -73.00,  69.00) 01/09/2018   18:49:20  ( -73.02,  68.92)    3.07                65
 01/09/2018   19:38:55   (  72.98,-123.71) 01/09/2018   19:40:05  (  72.97,-123.67)    1.78                70
 01/09/2018   20:29:37   ( -72.98,  43.61) 01/09/2018   20:30:49  ( -72.97,  43.64)    1.11                72
 01/09/2018   21:20:20   (  72.80,-149.42) 01/09/2018   21:21:32  (  72.82,-148.74)   22.72                72
 01/09/2018   22:11:03   ( -72.75,  17.79) 01/09/2018   22:12:15  ( -72.78,  18.68)   29.31                72
 01/09/2018   23:01:48   (  72.47,-175.43) 01/09/2018   23:02:56  (  72.53,-173.50)   65.07                68
 01/09/2018   23:52:31   ( -72.42,  -8.21) 01/09/2018   23:53:39  ( -72.48,  -6.09)   71.49                68