Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 5 24.  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)
 05/24/2021   09:48:06   (  68.56,  31.25) 05/24/2021   09:48:41  (  68.54,  31.19)    3.22                35
 05/24/2021   10:38:47   ( -68.41,-161.24) 05/24/2021   10:38:11  ( -68.43,-161.31)    3.03                36
 05/27/2021   01:14:25   ( -68.99, -20.87) 05/27/2021   01:15:36  ( -68.86, -20.17)   31.30                71
 05/27/2021   02:05:03   (  68.55, 147.03) 05/27/2021   02:05:07  (  68.53, 147.06)    2.81                 4
 05/27/2021   02:55:44   ( -68.40, -45.46) 05/27/2021   02:54:37  ( -68.42, -45.44)    2.07                67
 05/29/2021   17:31:15   ( -68.60,  95.41) 05/29/2021   17:32:06  ( -68.63,  95.42)    2.65                51
 05/29/2021   18:21:59   (  68.49, -97.13) 05/29/2021   18:21:33  (  68.51, -97.08)    3.00                26
 05/29/2021   19:12:25   ( -67.53,  71.39) 05/29/2021   19:11:17  ( -67.62,  69.52)   80.02                68
 06/01/2021   08:57:42   (  69.39,  42.78) 06/01/2021   08:58:50  (  69.32,  44.55)   70.04                68
 06/01/2021   09:48:10   ( -68.54,-148.74) 06/01/2021   09:48:32  ( -68.55,-148.79)    2.13                22
 06/01/2021   10:38:54   (  68.43,  18.71) 06/01/2021   10:37:59  (  68.43,  18.71)    0.24                55
 06/04/2021   01:14:25   (  68.64, 159.58) 06/04/2021   01:15:28  (  68.62, 159.55)    2.11                63
 06/04/2021   02:05:07   ( -68.54, -32.97) 06/04/2021   02:04:58  ( -68.53, -32.93)    1.80                 9
 06/04/2021   02:55:43   (  68.00, 135.03) 06/04/2021   02:54:32  (  68.01, 134.09)   39.17                71
 06/06/2021   17:31:21   (  68.58, -84.58) 06/06/2021   17:31:54  (  68.59, -84.61)    1.01                33
 06/06/2021   18:22:03   ( -68.48,  82.87) 06/06/2021   18:21:24  ( -68.49,  82.91)    2.22                39