Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 5 26.  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)
 06/05/2021   21:11:12   (  78.32,-161.52) 06/05/2021   21:10:03  (  78.29,-163.81)   51.70                69
 06/05/2021   22:02:00   ( -78.49,   4.82) 06/05/2021   22:00:53  ( -78.50,   4.83)    1.48                67
 06/05/2021   22:52:46   (  78.52, 171.97) 06/05/2021   22:51:58  (  78.49, 171.94)    3.58                48
 06/05/2021   23:43:29   ( -78.49, -20.56) 06/05/2021   23:42:53  ( -78.52, -20.59)    2.67                36
 06/06/2021   00:34:15   (  78.52, 146.58) 06/06/2021   00:33:58  (  78.50, 146.53)    2.75                17
 06/06/2021   01:24:59   ( -78.53, -46.17) 06/06/2021   01:24:53  ( -78.53, -46.00)    3.78                 6
 06/06/2021   02:15:44   (  78.52, 121.20) 06/06/2021   02:15:58  (  78.51, 121.11)    2.45                14
 06/06/2021   03:06:28   ( -78.54, -71.55) 06/06/2021   03:06:53  ( -78.54, -71.42)    3.08                25
 06/06/2021   03:57:13   (  78.53,  95.82) 06/06/2021   03:57:58  (  78.52,  95.69)    2.84                45
 06/06/2021   04:47:57   ( -78.54, -96.94) 06/06/2021   04:48:53  ( -78.55, -96.83)    2.89                56
 06/06/2021   05:38:43   (  78.57,  70.20) 06/06/2021   05:39:57  (  78.57,  70.51)    6.84                74