Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 5 31.  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)
 06/01/2021   08:57:43   (  69.43,  42.72) 06/01/2021   08:58:51  (  69.28,  44.50)   71.96                68
 06/01/2021   09:48:10   ( -68.54,-148.74) 06/01/2021   09:48:32  ( -68.56,-148.78)    2.51                22
 06/01/2021   10:38:54   (  68.42,  18.73) 06/01/2021   10:37:59  (  68.44,  18.73)    2.53                55
 06/04/2021   01:14:25   (  68.63, 159.59) 06/04/2021   01:15:28  (  68.64, 159.57)    1.15                63
 06/04/2021   02:05:07   ( -68.53, -32.97) 06/04/2021   02:04:58  ( -68.53, -32.93)    1.68                 9
 06/04/2021   02:55:43   (  67.99, 135.05) 06/04/2021   02:54:32  (  68.02, 134.11)   39.09                71
 06/06/2021   17:31:21   (  68.58, -84.57) 06/06/2021   17:31:54  (  68.60, -84.59)    2.79                33
 06/06/2021   18:22:03   ( -68.48,  82.87) 06/06/2021   18:21:24  ( -68.50,  82.92)    3.05                39
 06/09/2021   08:57:39   ( -68.96,-136.63) 06/09/2021   08:58:50  ( -68.85,-136.04)   26.47                71
 06/09/2021   09:48:18   (  68.58,  31.19) 06/09/2021   09:48:20  (  68.56,  31.25)    3.38                 2
 06/09/2021   10:38:58   ( -68.43,-161.29) 06/09/2021   10:37:50  ( -68.41,-161.31)    2.21                68
 06/12/2021   01:14:29   ( -68.64, -20.44) 06/12/2021   01:15:18  ( -68.65, -20.41)    1.07                49
 06/12/2021   02:05:13   (  68.54, 147.01) 06/12/2021   02:04:45  (  68.52, 147.08)    3.39                28
 06/12/2021   02:55:38   ( -67.52, -44.39) 06/12/2021   02:54:30  ( -67.58, -46.38)   84.81                68