Simultaneous Nadir Overpasses (SNOs) between METOP-A and NPP
TLE Epoch: 2021 10 21.  Predictions up to the next  14.0 days:

     Date     Time(METOP-A) METOP-A Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/21/2021   02:52:47   (  77.13, 115.68) 10/21/2021   02:53:51  (  77.13, 115.86)    4.29                64
 10/21/2021   03:43:28   ( -77.15, -76.90) 10/21/2021   03:44:36  ( -77.16, -76.93)    0.76                68
 10/21/2021   04:34:07   (  77.16,  90.43) 10/21/2021   04:35:20  (  77.13,  90.48)    2.99                73
 10/21/2021   05:24:50   ( -77.09,-102.51) 10/21/2021   05:26:04  ( -77.11,-102.12)    9.93                74
 10/21/2021   06:15:36   (  76.82,  63.79) 10/21/2021   06:16:44  (  76.87,  66.19)   61.12                68
 10/21/2021   07:06:20   ( -76.71,-129.31) 10/21/2021   07:07:26  ( -76.76,-126.07)   82.69                66