Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 7 1.  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)
 07/03/2021   08:57:54   (  68.64,  43.74) 07/03/2021   08:58:34  (  68.63,  43.67)    2.99                40
 07/03/2021   09:48:35   ( -68.50,-148.76) 07/03/2021   09:48:04  ( -68.52,-148.83)    3.39                31
 07/06/2021   00:24:15   ( -69.23,  -8.61) 07/06/2021   00:25:25  ( -69.14,  -7.45)   46.81                70
 07/06/2021   01:14:50   (  68.62, 159.52) 07/06/2021   01:14:59  (  68.64, 159.56)    2.00                 9
 07/06/2021   02:05:31   ( -68.48, -32.97) 07/06/2021   02:04:30  ( -68.48, -33.00)    1.45                61
 07/08/2021   16:41:02   ( -68.68, 107.91) 07/08/2021   16:41:59  ( -68.70, 107.88)    3.17                57
 07/08/2021   17:31:46   (  68.55, -84.62) 07/08/2021   17:31:26  (  68.58, -84.63)    3.03                20
 07/08/2021   18:22:16   ( -67.82,  83.63) 07/08/2021   18:21:07  ( -67.87,  82.16)   62.03                69
 07/11/2021   08:07:35   (  69.71,  54.90) 07/11/2021   08:08:41  (  69.58,  57.26)   92.25                66
 07/11/2021   08:57:59   ( -68.66,-136.30) 07/11/2021   08:58:26  ( -68.65,-136.31)    1.65                27
 07/11/2021   09:48:43   (  68.54,  31.16) 07/11/2021   09:47:53  (  68.52,  31.18)    2.23                50
 07/14/2021   00:24:14   (  68.74, 172.04) 07/14/2021   00:25:22  (  68.74, 172.05)    0.74                68
 07/14/2021   01:14:55   ( -68.59, -20.45) 07/14/2021   01:14:53  ( -68.58, -20.51)    2.48                 2
 07/14/2021   02:05:35   (  68.26, 147.29) 07/14/2021   02:04:23  (  68.29, 146.79)   21.17                72