Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 5 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)
 05/05/2021   17:31:11   (  69.35, -85.55) 05/05/2021   17:32:19  (  69.26, -83.78)   70.39                68
 05/05/2021   18:21:39   ( -68.52,  82.90) 05/05/2021   18:22:00  ( -68.54,  82.94)    2.47                21
 05/05/2021   19:12:23   (  68.39,-109.62) 05/05/2021   19:11:28  (  68.37,-109.62)    1.91                55
 05/08/2021   09:47:54   (  68.58,  31.27) 05/08/2021   09:48:58  (  68.57,  31.22)    2.24                64
 05/08/2021   10:38:35   ( -68.44,-161.23) 05/08/2021   10:38:28  ( -68.46,-161.28)    3.17                 7
 05/08/2021   11:29:12   (  67.93,   6.72) 05/08/2021   11:28:01  (  68.01,   5.83)   37.98                71
 05/11/2021   02:04:51   (  68.56, 147.06) 05/11/2021   02:05:25  (  68.54, 147.06)    2.18                34
 05/11/2021   02:55:32   ( -68.41, -45.43) 05/11/2021   02:54:55  ( -68.43, -45.43)    2.21                37
 05/13/2021   17:31:09   ( -68.97,  94.96) 05/13/2021   17:32:20  ( -68.84,  95.68)   32.34                71
 05/13/2021   18:21:46   (  68.48, -97.08) 05/13/2021   18:21:51  (  68.50, -97.10)    2.03                 5
 05/13/2021   19:12:28   ( -68.39,  70.36) 05/13/2021   19:11:21  ( -68.40,  70.41)    2.24                67
 05/16/2021   09:47:59   ( -68.58,-148.75) 05/16/2021   09:48:51  ( -68.58,-148.77)    0.62                52
 05/16/2021   10:38:43   (  68.47,  18.70) 05/16/2021   10:38:18  (  68.46,  18.73)    1.42                25
 05/16/2021   11:29:10   ( -67.56,-172.84) 05/16/2021   11:28:01  ( -67.63,-174.60)   74.99                69