Simultaneous Nadir Overpasses (SNOs) between METOP-A and NPP
TLE Epoch: 2017 4 28.  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)
 04/28/2017   23:52:37   ( -72.74,  -6.60) 04/28/2017   23:53:21  ( -72.72,  -6.52)    3.08                44
 04/29/2017   00:43:16   (  72.76, 160.78) 04/29/2017   00:44:07  (  72.73, 160.78)    3.69                51
 04/29/2017   01:33:59   ( -72.72, -31.98) 04/29/2017   01:34:51  ( -72.73, -31.90)    3.02                52
 04/29/2017   02:24:38   (  72.74, 135.40) 04/29/2017   02:25:37  (  72.73, 135.40)    0.74                59
 04/29/2017   03:15:20   ( -72.75, -57.27) 04/29/2017   03:16:21  ( -72.73, -57.29)    1.51                61
 04/29/2017   04:06:00   (  72.72, 110.01) 04/29/2017   04:07:07  (  72.74, 110.01)    2.23                67
 04/29/2017   04:56:42   ( -72.72, -82.65) 04/29/2017   04:57:51  ( -72.74, -82.67)    1.72                69
 04/29/2017   05:47:23   (  72.64,  84.52) 04/29/2017   05:48:36  (  72.69,  84.74)    8.76                73
 04/29/2017   06:38:06   ( -72.60,-108.24) 04/29/2017   06:39:19  ( -72.64,-107.85)   13.99                73
 04/29/2017   07:28:49   (  72.37,  58.63) 04/29/2017   07:29:59  (  72.39,  59.97)   45.30                70
 04/29/2017   08:19:32   ( -72.32,-134.13) 04/29/2017   08:20:42  ( -72.34,-132.62)   51.27                70
 04/29/2017   09:10:17   (  72.04,  32.65) 04/29/2017   09:11:23  (  72.09,  35.19)   87.06                66
 04/29/2017   10:01:00   ( -71.99,-160.11) 04/29/2017   10:02:06  ( -72.04,-157.41)   92.85                66