Simultaneous Nadir Overpasses (SNOs) between FY3D and METOP-C
TLE Epoch: 2020 12 1.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(METOP-C) METOP-C Lat/Lon    Distance(km)  Time Diff(sec)
 12/14/2020   23:22:24   ( -73.86,   0.68) 12/14/2020   23:23:30  ( -73.77,   3.65)   92.76                66
 12/15/2020   00:13:05   (  73.66, 168.46) 12/15/2020   00:14:13  (  73.65, 170.70)   69.94                68
 12/15/2020   01:03:47   ( -73.56, -23.99) 12/15/2020   01:04:57  ( -73.50, -22.31)   53.29                70
 12/15/2020   01:54:29   (  73.41, 143.67) 12/15/2020   01:55:40  (  73.38, 144.74)   34.20                71
 12/15/2020   02:45:11   ( -73.31, -48.79) 12/15/2020   02:46:24  ( -73.23, -48.25)   19.25                73
 12/15/2020   03:35:53   (  73.16, 118.86) 12/15/2020   03:37:06  (  73.16, 118.91)    1.69                73
 12/15/2020   04:26:37   ( -73.16, -73.82) 12/15/2020   04:27:47  ( -73.16, -73.75)    2.43                70
 12/15/2020   05:17:22   (  73.16,  93.49) 12/15/2020   05:18:28  (  73.14,  93.53)    3.06                66
 12/15/2020   06:08:06   ( -73.16, -99.19) 12/15/2020   06:09:09  ( -73.14, -99.13)    2.88                63
 12/15/2020   06:58:50   (  73.11,  68.23) 12/15/2020   06:59:50  (  73.12,  68.14)    2.97                60
 12/15/2020   07:49:34   ( -73.11,-124.45) 12/15/2020   07:50:31  ( -73.13,-124.51)    2.40                57
 12/15/2020   08:40:19   (  73.11,  42.86) 12/15/2020   08:41:12  (  73.10,  42.76)    3.66                53
 12/15/2020   09:31:03   ( -73.11,-149.82) 12/15/2020   09:31:53  ( -73.11,-149.89)    2.47                50
 12/15/2020   10:21:48   (  73.11,  17.49) 12/15/2020   10:22:33  (  73.13,  17.49)    1.98                45
 12/15/2020   11:12:32   ( -73.11,-175.19) 12/15/2020   11:13:14  ( -73.14,-175.17)    2.86                42
 12/15/2020   12:03:17   (  73.11,  -7.87) 12/15/2020   12:03:55  (  73.11,  -7.89)    0.66                38
 12/15/2020   12:54:01   ( -73.11, 159.44) 12/15/2020   12:54:36  ( -73.12, 159.45)    0.74                35
 12/15/2020   13:44:45   (  73.11, -33.24) 12/15/2020   13:45:16  (  73.09, -33.28)    2.52                31
 12/15/2020   14:35:29   ( -73.11, 134.07) 12/15/2020   14:35:57  ( -73.10, 134.07)    1.46                28
 12/15/2020   15:26:14   (  73.11, -58.61) 12/15/2020   15:26:37  (  73.12, -58.55)    2.37                23
 12/15/2020   16:16:58   ( -73.11, 108.70) 12/15/2020   16:17:19  ( -73.08, 108.69)    3.60                21
 12/15/2020   17:07:43   (  73.11, -83.98) 12/15/2020   17:07:59  (  73.10, -83.93)    1.86                16
 12/15/2020   17:58:27   ( -73.11,  83.33) 12/15/2020   17:58:40  ( -73.11,  83.41)    2.62                13
 12/15/2020   18:49:12   (  73.11,-109.35) 12/15/2020   18:49:21  (  73.08,-109.31)    3.27                 9
 12/15/2020   19:39:56   ( -73.11,  57.96) 12/15/2020   19:40:02  ( -73.09,  58.03)    3.12                 6
 12/15/2020   20:30:40   (  73.06,-134.61) 12/15/2020   20:30:43  (  73.06,-134.70)    2.81                 3
 12/15/2020   21:21:24   ( -73.06,  32.70) 12/15/2020   21:21:24  ( -73.07,  32.65)    2.14                 0