Simultaneous Nadir Overpasses (SNOs) between METOP-A and NPP
TLE Epoch: 2018 6 10.  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)
 06/10/2018   23:53:26   (  73.31, 172.19) 06/10/2018   23:53:40  (  73.29, 172.23)    2.02                14
 06/11/2018   00:44:07   ( -73.33, -20.44) 06/11/2018   00:44:24  ( -73.31, -20.49)    2.84                17
 06/11/2018   01:34:48   (  73.28, 146.79) 06/11/2018   01:35:10  (  73.30, 146.84)    2.90                22
 06/11/2018   02:25:29   ( -73.30, -45.83) 06/11/2018   02:25:54  ( -73.31, -45.87)    1.75                25
 06/11/2018   03:16:09   (  73.30, 121.50) 06/11/2018   03:16:40  (  73.30, 121.46)    1.26                31
 06/11/2018   04:06:51   ( -73.28, -71.23) 06/11/2018   04:07:23  ( -73.27, -71.15)    2.88                32
 06/11/2018   04:57:31   (  73.28,  96.10) 06/11/2018   04:58:09  (  73.26,  96.18)    3.25                38
 06/11/2018   05:48:12   ( -73.30, -96.52) 06/11/2018   05:48:53  ( -73.28, -96.53)    2.66                41
 06/11/2018   06:38:52   (  73.30,  70.81) 06/11/2018   06:39:39  (  73.27,  70.80)    3.69                47
 06/11/2018   07:29:34   ( -73.27,-121.92) 06/11/2018   07:30:23  ( -73.28,-121.92)    0.97                49
 06/11/2018   08:20:14   (  73.27,  45.41) 06/11/2018   08:21:09  (  73.27,  45.41)    0.11                55
 06/11/2018   09:10:55   ( -73.29,-147.21) 06/11/2018   09:11:53  ( -73.29,-147.31)    3.13                58
 06/11/2018   10:01:35   (  73.29,  20.12) 06/11/2018   10:02:39  (  73.28,  20.02)    3.61                64
 06/11/2018   10:52:17   ( -73.27,-172.61) 06/11/2018   10:53:22  ( -73.24,-172.58)    3.13                65
 06/11/2018   11:42:57   (  73.27,  -5.28) 06/11/2018   11:44:09  (  73.28,  -5.36)    3.04                72
 06/11/2018   12:33:39   ( -73.24, 161.99) 06/11/2018   12:34:52  ( -73.25, 162.03)    1.58                73
 06/11/2018   13:24:23   (  73.04, -31.12) 06/11/2018   13:25:35  (  73.09, -30.31)   26.83                72
 06/11/2018   14:15:06   ( -72.96, 136.05) 06/11/2018   14:16:17  ( -73.00, 137.19)   37.51                71
 06/11/2018   15:05:51   (  72.70, -57.15) 06/11/2018   15:06:59  (  72.79, -55.05)   69.97                68
 06/11/2018   15:56:34   ( -72.63, 110.03) 06/11/2018   15:57:41  ( -72.70, 112.45)   80.57                67