Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2019 5 18.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(NOAA-19) NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 05/29/2019   09:53:16   ( -80.14, 172.80) 05/29/2019   09:52:04  ( -80.12, 172.70)    3.00                72
 05/29/2019   10:44:01   (  80.14, -19.94) 05/29/2019   10:43:02  (  80.12, -19.98)    2.39                59
 05/29/2019   11:34:45   ( -80.13, 147.48) 05/29/2019   11:34:04  ( -80.14, 147.47)    0.49                41
 05/29/2019   12:25:30   (  80.14, -45.26) 05/29/2019   12:25:02  (  80.14, -45.21)    1.08                28
 05/29/2019   13:16:15   ( -80.16, 121.86) 05/29/2019   13:16:05  ( -80.13, 121.93)    2.83                10
 05/29/2019   14:06:59   (  80.13, -70.59) 05/29/2019   14:07:03  (  80.14, -70.76)    3.34                 4
 05/29/2019   14:57:44   ( -80.15,  96.53) 05/29/2019   14:58:05  ( -80.15,  96.70)    3.20                21
 05/29/2019   15:48:29   (  80.16, -96.21) 05/29/2019   15:49:04  (  80.13, -96.31)    3.12                35
 05/29/2019   16:39:13   ( -80.15,  71.21) 05/29/2019   16:40:06  ( -80.15,  71.16)    1.08                53