Simultaneous Nadir Overpasses (SNOs) between NOAA-15 and METOP-C
TLE Epoch: 2021 5 12.  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   00:29:43   (  81.02,-150.55) 05/13/2021   00:28:39  (  81.01,-150.38)    3.17                64
 05/13/2021   01:20:17   ( -81.01,  16.99) 05/13/2021   01:19:19  ( -81.01,  17.13)    2.62                58
 05/13/2021   02:10:45   (  81.01,-175.72) 05/13/2021   02:10:01  (  81.00,-175.88)    3.16                44
 05/13/2021   03:01:19   ( -81.00,  -8.18) 05/13/2021   03:00:41  ( -81.01,  -8.36)    3.21                38
 05/13/2021   03:51:47   (  81.01, 159.12) 05/13/2021   03:51:22  (  81.01, 158.99)    2.15                25
 05/13/2021   04:42:22   ( -81.02, -33.71) 05/13/2021   04:42:03  ( -81.00, -33.85)    3.10                19
 05/13/2021   05:32:49   (  81.00, 133.95) 05/13/2021   05:32:43  (  81.02, 133.86)    2.11                 6
 05/13/2021   06:23:24   ( -81.01, -58.87) 05/13/2021   06:23:24  ( -81.01, -58.98)    1.97                 0
 05/13/2021   07:13:52   (  81.02, 108.41) 05/13/2021   07:14:05  (  81.01, 108.37)    1.05                13
 05/13/2021   08:04:26   ( -81.01, -84.03) 05/13/2021   08:04:45  ( -81.02, -84.11)    1.82                19
 05/13/2021   08:54:54   (  81.01,  83.25) 05/13/2021   08:55:26  (  81.02,  83.24)    0.86                32
 05/13/2021   09:45:29   ( -81.02,-109.57) 05/13/2021   09:46:07  ( -81.01,-109.61)    1.09                38
 05/13/2021   10:35:56   (  81.03,  57.71) 05/13/2021   10:36:47  (  81.01,  57.74)    1.35                51
 05/13/2021   11:26:30   ( -81.02,-134.73) 05/13/2021   11:27:27  ( -81.02,-134.73)    0.66                57
 05/13/2021   12:16:58   (  81.02,  32.55) 05/13/2021   12:18:08  (  81.02,  32.61)    1.14                70