Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 1 30.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(LANDSAT-8) LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 01/30/2023   19:25:07   (  72.61,-111.11) 01/30/2023   19:25:48  (  72.62,-111.05)    2.45                41
 01/30/2023   20:15:50   ( -72.49,  56.44) 01/30/2023   20:15:18  ( -72.51,  56.36)    3.10                32
 02/02/2023   10:52:22   ( -72.59,-162.84) 02/02/2023   10:52:52  ( -72.61,-162.84)    3.14                30
 02/02/2023   11:43:07   (  72.52,   4.60) 02/02/2023   11:42:19  (  72.52,   4.63)    1.13                48
 02/05/2023   01:29:09   ( -73.44, -23.80) 02/05/2023   01:30:14  ( -73.34, -20.82)   95.65                65
 02/05/2023   02:19:38   (  72.58, 145.39) 02/05/2023   02:19:53  (  72.61, 145.39)    3.37                15
 02/05/2023   03:10:22   ( -72.51, -47.15) 02/05/2023   03:09:23  ( -72.50, -47.18)    1.66                59
 02/07/2023   16:56:14   (  72.90, -74.38) 02/07/2023   16:57:25  (  72.78, -73.67)   26.34                71
 02/07/2023   17:46:53   ( -72.57,  93.62) 02/07/2023   17:46:57  ( -72.57,  93.55)    2.55                 4
 02/07/2023   18:37:37   (  72.46, -98.84) 02/07/2023   18:36:24  (  72.47, -98.99)    5.02                73
 02/10/2023   08:23:24   ( -72.65,-125.63) 02/10/2023   08:24:30  ( -72.67,-125.66)    2.28                66
 02/10/2023   09:14:09   (  72.59,  41.80) 02/10/2023   09:13:57  (  72.57,  41.80)    2.33                12
 02/10/2023   10:04:43   ( -72.01,-149.73) 02/10/2023   10:03:34  ( -72.09,-151.44)   59.43                69
 02/12/2023   23:50:39   (  72.68,-177.47) 02/12/2023   23:51:29  (  72.65,-177.44)    3.10                50
 02/13/2023   00:41:23   ( -72.61, -10.01) 02/13/2023   00:40:58  ( -72.60,  -9.91)    3.42                25