Simultaneous Nadir Overpasses (SNOs) between NPP and METOP-C
TLE Epoch: 2021 4 15.  Predictions up to the next  14.0 days:

     Date     Time(NPP) NPP Lat/Lon Date Time(METOP-C) METOP-C Lat/Lon    Distance(km)  Time Diff(sec)
 04/15/2021   04:25:38   ( -72.57, -74.36) 04/15/2021   04:24:43  ( -72.55, -74.27)    3.68                55
 04/15/2021   05:16:24   (  72.56,  92.96) 04/15/2021   05:15:24  (  72.53,  93.03)    3.34                60
 04/15/2021   06:07:06   ( -72.52, -99.65) 04/15/2021   06:06:04  ( -72.53, -99.65)    0.93                62
 04/15/2021   06:57:52   (  72.51,  67.68) 04/15/2021   06:56:45  (  72.51,  67.65)    1.11                67
 04/15/2021   07:48:36   ( -72.53,-125.04) 04/15/2021   07:47:26  ( -72.51,-125.03)    2.16                70
 04/15/2021   08:39:21   (  72.47,  42.39) 04/15/2021   08:38:07  (  72.49,  42.26)    5.04                74
 04/15/2021   09:30:03   ( -72.38,-150.12) 04/15/2021   09:28:50  ( -72.39,-150.61)   16.63                73
 04/15/2021   10:20:46   (  72.22,  17.51) 04/15/2021   10:19:34  (  72.21,  16.38)   38.46                72
 04/15/2021   11:11:28   ( -72.13,-175.01) 04/15/2021   11:10:17  ( -72.11,-176.49)   50.66                71
 04/15/2021   12:02:09   (  71.87,  -7.19) 04/15/2021   12:01:02  (  71.88,  -9.59)   82.90                67
 04/15/2021   12:52:51   ( -71.78, 160.28) 04/15/2021   12:51:45  ( -71.78, 157.55)   94.83                66