Simultaneous Nadir Overpasses (SNOs) between FY3D and METOP-C
TLE Epoch: 2020 4 30.  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)
 04/30/2020   04:15:43   (  72.91, 108.70) 04/30/2020   04:15:35  (  72.90, 108.65)    2.20                 8
 04/30/2020   05:06:26   ( -72.90, -83.96) 04/30/2020   05:06:16  ( -72.93, -83.96)    2.78                10
 04/30/2020   05:57:12   (  72.91,  83.33) 04/30/2020   05:56:56  (  72.93,  83.38)    2.58                16
 04/30/2020   06:47:55   ( -72.90,-109.33) 04/30/2020   06:47:38  ( -72.91,-109.34)    1.10                17
 04/30/2020   07:38:41   (  72.91,  57.97) 04/30/2020   07:38:18  (  72.91,  57.99)    0.77                23
 04/30/2020   08:29:24   ( -72.90,-134.69) 04/30/2020   08:29:00  ( -72.89,-134.72)    1.40                24
 04/30/2020   09:20:10   (  72.90,  32.61) 04/30/2020   09:19:40  (  72.89,  32.61)    1.46                30
 04/30/2020   10:10:53   ( -72.89,-160.05) 04/30/2020   10:10:22  ( -72.87,-160.10)    3.16                31
 04/30/2020   11:01:39   (  72.90,   7.25) 04/30/2020   11:01:02  (  72.87,   7.23)    3.36                37
 04/30/2020   11:52:21   ( -72.89, 174.59) 04/30/2020   11:51:42  ( -72.90, 174.62)    1.60                39
 04/30/2020   12:43:07   (  72.89, -18.12) 04/30/2020   12:42:22  (  72.90, -18.05)    2.25                45
 04/30/2020   13:33:50   ( -72.88, 149.22) 04/30/2020   13:33:04  ( -72.88, 149.24)    0.75                46
 04/30/2020   14:24:36   (  72.89, -43.48) 04/30/2020   14:23:44  (  72.88, -43.43)    2.02                52
 04/30/2020   15:15:19   ( -72.88, 123.86) 04/30/2020   15:14:26  ( -72.86, 123.86)    2.42                53
 04/30/2020   16:06:05   (  72.89, -68.84) 04/30/2020   16:05:06  (  72.86, -68.81)    3.28                59
 04/30/2020   16:56:48   ( -72.88,  98.50) 04/30/2020   16:55:47  ( -72.89,  98.58)    2.99                61
 04/30/2020   17:47:33   (  72.83, -94.10) 04/30/2020   17:46:28  (  72.84, -94.20)    3.34                65
 04/30/2020   18:38:17   ( -72.87,  73.14) 04/30/2020   18:37:09  ( -72.87,  73.20)    2.05                68
 04/30/2020   19:29:03   (  72.88,-119.57) 04/30/2020   19:27:49  (  72.87,-119.47)    3.28                74
 04/30/2020   20:19:46   ( -72.87,  47.77) 04/30/2020   20:18:31  ( -72.85,  47.82)    2.59                75
 04/30/2020   21:10:27   (  72.62,-144.40) 04/30/2020   21:09:15  (  72.64,-145.28)   29.16                72
 04/30/2020   22:01:10   ( -72.61,  22.94) 04/30/2020   21:59:58  ( -72.58,  21.91)   34.28                72
 04/30/2020   22:51:51   (  72.36,-169.25) 04/30/2020   22:50:42  (  72.37,-171.17)   64.67                69
 04/30/2020   23:42:33   ( -72.30,  -1.82) 04/30/2020   23:41:25  ( -72.30,  -3.97)   72.97                68