Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 12 28.  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)
 01/02/2022   05:30:38   ( -77.93,-102.74) 01/02/2022   05:29:27  ( -77.94,-102.80)    1.29                71
 01/02/2022   06:21:24   (  77.95,  64.47) 01/02/2022   06:20:25  (  77.93,  64.42)    2.78                59
 01/02/2022   07:12:10   ( -77.95,-128.23) 01/02/2022   07:11:27  ( -77.94,-128.27)    1.63                43
 01/02/2022   08:02:56   (  77.97,  38.99) 01/02/2022   08:02:25  (  77.94,  38.96)    4.23                31
 01/02/2022   08:53:42   ( -77.97,-153.72) 01/02/2022   08:53:27  ( -77.95,-153.74)    3.12                15
 01/02/2022   09:44:27   (  77.95,  13.71) 01/02/2022   09:44:24  (  77.98,  13.71)    2.88                 3
 01/02/2022   10:35:13   ( -77.95,-178.99) 01/02/2022   10:35:26  ( -77.99,-178.99)    3.89                13
 01/02/2022   11:25:59   (  77.97, -11.78) 01/02/2022   11:26:24  (  77.98, -11.76)    1.32                25
 01/02/2022   12:16:45   ( -77.98, 155.52) 01/02/2022   12:17:26  ( -77.99, 155.54)    2.24                41
 01/02/2022   13:07:31   (  77.99, -37.27) 01/02/2022   13:08:24  (  77.99, -37.22)    1.11                53
 01/02/2022   13:58:17   ( -78.00, 130.03) 01/02/2022   13:59:26  ( -78.00, 130.07)    1.05                69
 01/02/2022   14:49:10   (  78.29, -64.27) 01/02/2022   14:50:16  (  78.29, -60.90)   76.15                66