Simultaneous Nadir Overpasses (SNOs) between NOAA-15 and METOP-C
TLE Epoch: 2021 7 11.  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)
 07/18/2021   04:27:07   (  81.02, 150.53) 07/18/2021   04:25:55  (  81.03, 150.52)    0.70                72
 07/18/2021   05:17:34   ( -81.02, -42.03) 07/18/2021   05:16:36  ( -81.03, -42.02)    1.58                58
 07/18/2021   06:08:10   (  81.03, 124.97) 07/18/2021   06:07:17  (  81.02, 125.02)    1.79                53
 07/18/2021   06:58:37   ( -81.03, -67.59) 07/18/2021   06:57:58  ( -81.02, -67.53)    1.27                39
 07/18/2021   07:49:12   (  81.03,  99.78) 07/18/2021   07:48:38  (  81.03,  99.88)    1.81                34
 07/18/2021   08:39:39   ( -81.03, -92.78) 07/18/2021   08:39:19  ( -81.03, -92.66)    2.09                20
 07/18/2021   09:30:14   (  81.03,  74.59) 07/18/2021   09:29:59  (  81.04,  74.74)    2.92                15
 07/18/2021   10:20:42   ( -81.04,-118.34) 07/18/2021   10:20:41  ( -81.02,-118.17)    3.36                 1
 07/18/2021   11:11:16   (  81.02,  49.40) 07/18/2021   11:11:21  (  81.03,  49.24)    2.79                 5
 07/18/2021   12:01:43   ( -81.02,-143.16) 07/18/2021   12:02:02  ( -81.03,-143.31)    2.89                19
 07/18/2021   12:52:19   (  81.04,  23.84) 07/18/2021   12:52:43  (  81.02,  23.73)    2.44                24
 07/18/2021   13:42:46   ( -81.03,-168.72) 07/18/2021   13:43:24  ( -81.03,-168.81)    1.77                38
 07/18/2021   14:33:21   (  81.03,  -1.35) 07/18/2021   14:34:04  (  81.03,  -1.40)    0.92                43
 07/18/2021   15:23:48   ( -81.03, 166.09) 07/18/2021   15:24:45  ( -81.04, 166.05)    0.80                57
 07/18/2021   16:14:23   (  81.03, -26.55) 07/18/2021   16:15:25  (  81.04, -26.54)    0.92                62