Simultaneous Nadir Overpasses (SNOs) between METOP-B and NPP
TLE Epoch: 2021 1 11.  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)
 01/24/2021   18:18:21   ( -73.45,  78.82) 01/24/2021   18:17:14  ( -73.48,  75.87)   93.46                67
 01/24/2021   19:09:04   (  73.27,-114.26) 01/24/2021   19:07:55  (  73.26,-116.31)   65.74                69
 01/24/2021   19:59:48   ( -73.18,  52.88) 01/24/2021   19:58:38  ( -73.19,  51.16)   55.52                70
 01/24/2021   20:50:32   (  72.94,-140.30) 01/24/2021   20:49:19  (  72.96,-141.04)   24.29                73
 01/24/2021   21:41:16   ( -72.86,  26.85) 01/24/2021   21:40:02  ( -72.89,  26.42)   14.65                74
 01/24/2021   22:31:57   (  72.77,-166.00) 01/24/2021   22:30:45  (  72.76,-166.00)    0.89                72
 01/24/2021   23:22:40   ( -72.74,   1.26) 01/24/2021   23:21:29  ( -72.75,   1.35)    3.07                71
 01/25/2021   00:13:19   (  72.75, 168.62) 01/25/2021   00:12:15  (  72.77, 168.62)    1.83                64
 01/25/2021   01:04:01   ( -72.77, -24.01) 01/25/2021   01:02:59  ( -72.75, -24.03)    2.27                62
 01/25/2021   01:54:41   (  72.73, 143.24) 01/25/2021   01:53:44  (  72.72, 143.34)    3.31                57
 01/25/2021   02:45:23   ( -72.75, -49.39) 01/25/2021   02:44:29  ( -72.76, -49.42)    0.97                54
 01/25/2021   03:36:03   (  72.71, 117.86) 01/25/2021   03:35:14  (  72.73, 117.95)    3.36                49