Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 5 29.  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)
 05/29/2021   17:31:15   ( -68.63,  95.38) 05/29/2021   17:32:06  ( -68.60,  95.39)    3.09                51
 05/29/2021   18:21:59   (  68.51, -97.15) 05/29/2021   18:21:33  (  68.49, -97.10)    2.95                26
 05/29/2021   19:12:25   ( -67.56,  71.36) 05/29/2021   19:11:17  ( -67.60,  69.49)   79.40                68
 06/01/2021   08:57:43   (  69.41,  42.75) 06/01/2021   08:58:51  (  69.30,  44.53)   70.88                68
 06/01/2021   09:48:11   ( -68.57,-148.78) 06/01/2021   09:48:32  ( -68.58,-148.75)    2.05                21
 06/01/2021   10:38:54   (  68.40,  18.76) 06/01/2021   10:38:00  (  68.41,  18.69)    3.26                54
 06/04/2021   01:14:26   (  68.66, 159.55) 06/04/2021   01:15:28  (  68.66, 159.60)    2.14                62
 06/04/2021   02:05:07   ( -68.51, -32.93) 06/04/2021   02:04:59  ( -68.50, -32.96)    1.24                 8
 06/04/2021   02:55:43   (  67.96, 135.07) 06/04/2021   02:54:32  (  68.05, 134.14)   39.92                71
 06/06/2021   17:31:21   (  68.61, -84.62) 06/06/2021   17:31:53  (  68.63, -84.55)    3.48                32
 06/06/2021   18:22:02   ( -68.46,  82.90) 06/06/2021   18:21:24  ( -68.48,  82.89)    2.31                38
 06/09/2021   08:57:38   ( -68.93,-136.60) 06/09/2021   08:58:50  ( -68.83,-136.07)   24.13                72
 06/09/2021   09:48:17   (  68.56,  31.22) 06/09/2021   09:48:20  (  68.54,  31.22)    2.48                 3
 06/09/2021   10:38:59   ( -68.46,-161.33) 06/09/2021   10:37:50  ( -68.44,-161.27)    3.14                69
 06/12/2021   01:14:29   ( -68.62, -20.40) 06/12/2021   01:15:19  ( -68.62, -20.44)    1.56                50
 06/12/2021   02:05:13   (  68.51, 147.04) 06/12/2021   02:04:46  (  68.49, 147.05)    2.04                27
 06/12/2021   02:55:39   ( -67.55, -44.42) 06/12/2021   02:54:31  ( -67.56, -46.40)   84.10                68