Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 6 5.  Predictions up to the next  14.0 days:

     Date     Time(NPP) NPP Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 06/06/2021   17:31:22   (  68.62, -84.64) 06/06/2021   17:31:56  (  68.61, -84.58)    2.43                34
 06/06/2021   18:22:03   ( -68.48,  82.87) 06/06/2021   18:21:27  ( -68.45,  82.85)    3.25                36
 06/09/2021   08:57:40   ( -69.06,-136.77) 06/09/2021   08:58:51  ( -68.96,-135.92)   35.86                71
 06/09/2021   09:48:17   (  68.57,  31.20) 06/09/2021   09:48:23  (  68.57,  31.24)    1.74                 6
 06/09/2021   10:38:58   ( -68.42,-161.29) 06/09/2021   10:37:54  ( -68.41,-161.32)    2.15                64
 06/12/2021   01:14:29   ( -68.64, -20.43) 06/12/2021   01:15:24  ( -68.64, -20.44)    0.79                55
 06/12/2021   02:05:13   (  68.52, 147.03) 06/12/2021   02:04:51  (  68.52, 147.06)    1.31                22
 06/12/2021   02:55:42   ( -67.73, -44.64) 06/12/2021   02:54:33  ( -67.75, -46.21)   66.12                69
 06/14/2021   16:41:01   (  69.65, -73.39) 06/14/2021   16:42:07  (  69.53, -71.05)   91.76                66
 06/14/2021   17:31:25   ( -68.59,  95.40) 06/14/2021   17:31:52  ( -68.60,  95.39)    1.72                27
 06/14/2021   18:22:09   (  68.48, -97.14) 06/14/2021   18:21:19  (  68.48, -97.12)    1.09                50
 06/17/2021   08:57:40   (  68.70,  43.70) 06/17/2021   08:58:49  (  68.71,  43.77)    2.88                69
 06/17/2021   09:48:21   ( -68.54,-148.77) 06/17/2021   09:48:20  ( -68.56,-148.79)    2.37                 1
 06/17/2021   10:39:02   (  68.27,  18.89) 06/17/2021   10:37:49  (  68.32,  18.57)   14.29                73