Simultaneous Nadir Overpasses (SNOs) between NOAA-15 and METOP-C
TLE Epoch: 2021 8 18.  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)
 08/31/2021   05:06:52   ( -81.03, -39.41) 08/31/2021   05:05:39  ( -81.03, -39.35)    1.25                73
 08/31/2021   05:57:21   (  81.02, 128.10) 08/31/2021   05:56:20  (  81.04, 128.06)    1.65                61
 08/31/2021   06:47:54   ( -81.03, -64.62) 08/31/2021   06:47:00  ( -81.04, -64.49)    2.80                54
 08/31/2021   07:38:24   (  81.04, 102.52) 08/31/2021   07:37:42  (  81.03, 102.55)    1.01                42
 08/31/2021   08:28:56   ( -81.03, -89.82) 08/31/2021   08:28:22  ( -81.04, -90.00)    3.31                34
 08/31/2021   09:19:26   (  81.04,  77.31) 08/31/2021   09:19:03  (  81.04,  77.41)    1.78                23
 08/31/2021   10:09:59   ( -81.04,-115.39) 08/31/2021   10:09:44  ( -81.03,-115.51)    2.32                15
 08/31/2021   11:00:27   (  81.03,  52.10) 08/31/2021   11:00:23  (  81.05,  52.27)    3.28                 4
 08/31/2021   11:51:00   ( -81.04,-140.60) 08/31/2021   11:51:04  ( -81.04,-140.65)    0.96                 4
 08/31/2021   12:41:29   (  81.03,  26.89) 08/31/2021   12:41:45  (  81.04,  26.76)    2.53                16
 08/31/2021   13:32:02   ( -81.03,-165.80) 08/31/2021   13:32:25  ( -81.05,-165.79)    1.25                23
 08/31/2021   14:22:32   (  81.05,   1.31) 08/31/2021   14:23:07  (  81.03,   1.24)    1.81                35
 08/31/2021   15:13:05   ( -81.05, 168.63) 08/31/2021   15:13:47  ( -81.04, 168.69)    1.58                42
 08/31/2021   16:03:34   (  81.04, -23.90) 08/31/2021   16:04:28  (  81.04, -23.90)    0.23                54
 08/31/2021   16:54:07   ( -81.05, 143.42) 08/31/2021   16:55:08  ( -81.05, 143.55)    2.27                61