Simultaneous Nadir Overpasses (SNOs) between NOAA-15 and METOP-C
TLE Epoch: 2021 5 1.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-15) NOAA-15 Lat/Lon Date Time(METOP-C) METOP-C Lat/Lon    Distance(km)  Time Diff(sec)
 05/13/2021   00:29:42   (  81.01,-150.51) 05/13/2021   00:28:38  (  81.01,-150.36)    2.75                64
 05/13/2021   01:20:17   ( -81.02,  16.76) 05/13/2021   01:19:19  ( -81.00,  16.88)    2.79                58
 05/13/2021   02:10:44   (  81.01,-175.67) 05/13/2021   02:10:00  (  81.00,-175.85)    3.31                44
 05/13/2021   03:01:19   ( -81.01,  -8.41) 05/13/2021   03:00:40  ( -81.01,  -8.25)    2.82                39
 05/13/2021   03:51:46   (  81.01, 159.16) 05/13/2021   03:51:21  (  81.01, 159.02)    2.51                25
 05/13/2021   04:42:21   ( -81.01, -33.57) 05/13/2021   04:42:02  ( -81.00, -33.74)    2.97                19
 05/13/2021   05:32:49   (  81.02, 133.63) 05/13/2021   05:32:43  (  81.00, 133.52)    2.53                 6
 05/13/2021   06:23:23   ( -81.00, -58.74) 05/13/2021   06:23:23  ( -81.01, -58.87)    2.53                 0
 05/13/2021   07:13:51   (  81.01, 108.46) 05/13/2021   07:14:04  (  81.01, 108.39)    1.21                13
 05/13/2021   08:04:26   ( -81.02, -84.27) 05/13/2021   08:04:45  ( -81.01, -84.36)    2.01                19
 05/13/2021   08:54:53   (  81.01,  83.29) 05/13/2021   08:55:25  (  81.02,  83.26)    1.31                32
 05/13/2021   09:45:28   ( -81.01,-109.43) 05/13/2021   09:46:06  ( -81.02,-109.49)    1.16                38
 05/13/2021   10:35:56   (  81.02,  57.76) 05/13/2021   10:36:47  (  81.01,  57.76)    0.92                51
 05/13/2021   11:26:31   ( -81.02,-134.96) 05/13/2021   11:27:28  ( -81.01,-134.99)    1.73                57
 05/13/2021   12:16:58   (  81.02,  32.59) 05/13/2021   12:18:08  (  81.02,  32.64)    0.95                70