Simultaneous Nadir Overpasses (SNOs) between METOP-B and NPP
TLE Epoch: 2021 10 10.  Predictions up to the next  14.0 days:

     Date     Time(METOP-B) METOP-B Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/10/2021   04:39:12   (  72.65, 102.10) 10/10/2021   04:39:55  (  72.63, 102.10)    2.63                43
 10/10/2021   05:29:55   ( -72.61, -90.65) 10/10/2021   05:30:39  ( -72.62, -90.58)    2.67                44
 10/10/2021   06:20:34   (  72.63,  76.72) 10/10/2021   06:21:25  (  72.63,  76.72)    0.15                51
 10/10/2021   07:11:16   ( -72.64,-115.93) 10/10/2021   07:12:09  ( -72.63,-115.96)    1.98                53
 10/10/2021   08:01:56   (  72.61,  51.34) 10/10/2021   08:02:55  (  72.63,  51.33)    2.85                59
 10/10/2021   08:52:38   ( -72.62,-141.31) 10/10/2021   08:53:39  ( -72.63,-141.35)    1.78                61
 10/10/2021   09:43:18   (  72.59,  25.96) 10/10/2021   09:44:24  (  72.59,  26.05)    3.19                66
 10/10/2021   10:34:00   ( -72.60,-166.69) 10/10/2021   10:35:08  ( -72.59,-166.63)    2.67                68
 10/10/2021   11:24:40   (  72.57,   0.58) 10/10/2021   11:25:54  (  72.59,   0.67)    4.09                74
 10/10/2021   12:15:24   ( -72.48, 167.73) 10/10/2021   12:16:37  ( -72.54, 168.09)   13.90                73
 10/10/2021   13:06:08   (  72.24, -25.41) 10/10/2021   13:07:18  (  72.29, -24.10)   44.77                70
 10/10/2021   13:56:51   ( -72.21, 141.85) 10/10/2021   13:58:01  ( -72.24, 143.32)   50.07                70
 10/10/2021   14:47:35   (  71.96, -51.28) 10/10/2021   14:48:42  (  71.99, -48.89)   82.36                67
 10/10/2021   15:38:19   ( -71.88, 115.88) 10/10/2021   15:39:25  ( -71.94, 118.52)   91.32                66