Simultaneous Nadir Overpasses (SNOs) between NOAA-15 and METOP-C
TLE Epoch: 2021 8 9.  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)
 08/09/2021   04:21:38   ( -80.92, -25.99) 08/09/2021   04:20:35  ( -80.90, -30.88)   85.99                63
 08/09/2021   05:12:18   (  81.03, 139.15) 08/09/2021   05:11:09  (  81.02, 139.10)    1.03                69
 08/09/2021   06:02:46   ( -81.02, -53.36) 08/09/2021   06:01:49  ( -81.03, -53.49)    2.27                57
 08/09/2021   06:53:20   (  81.03, 113.95) 08/09/2021   06:52:30  (  81.03, 113.96)    0.73                50
 08/09/2021   07:43:48   ( -81.02, -78.56) 08/09/2021   07:43:10  ( -81.04, -78.63)    2.06                38
 08/09/2021   08:34:23   (  81.04,  88.37) 08/09/2021   08:33:52  (  81.03,  88.45)    2.06                31
 08/09/2021   09:24:51   ( -81.03,-104.12) 08/09/2021   09:24:32  ( -81.03,-104.14)    0.69                19
 08/09/2021   10:15:25   (  81.04,  63.17) 08/09/2021   10:15:13  (  81.03,  63.31)    2.38                12
 08/09/2021   11:05:53   ( -81.03,-129.32) 08/09/2021   11:05:53  ( -81.04,-129.28)    0.94                 0
 08/09/2021   11:56:27   (  81.03,  37.97) 08/09/2021   11:56:35  (  81.03,  37.80)    3.10                 8
 08/09/2021   12:46:56   ( -81.04,-154.89) 08/09/2021   12:47:15  ( -81.03,-154.79)    2.37                19
 08/09/2021   13:37:29   (  81.03,  12.77) 08/09/2021   13:37:56  (  81.04,  12.66)    1.92                27
 08/09/2021   14:27:58   ( -81.04, 179.92) 08/09/2021   14:28:36  ( -81.04,-179.93)    2.72                38
 08/09/2021   15:18:31   (  81.03, -12.43) 08/09/2021   15:19:17  (  81.04, -12.48)    1.74                46
 08/09/2021   16:09:00   ( -81.04, 154.72) 08/09/2021   16:09:58  ( -81.03, 154.56)    2.85                58
 08/09/2021   16:59:34   (  81.04, -38.00) 08/09/2021   17:00:39  (  81.04, -37.99)    0.81                65