Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 7 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)
 07/27/2021   08:07:28   (  68.76,  56.22) 07/27/2021   08:08:38  (  68.76,  56.21)    1.15                70
 07/27/2021   08:58:09   ( -68.62,-136.28) 07/27/2021   08:58:08  ( -68.65,-136.29)    3.31                 1
 07/27/2021   09:48:50   (  68.33,  31.41) 07/27/2021   09:47:38  (  68.37,  31.01)   17.19                72
 07/30/2021   00:24:24   (  68.70, 172.06) 07/30/2021   00:25:06  (  68.69, 172.00)    2.61                42
 07/30/2021   01:15:05   ( -68.57, -20.44) 07/30/2021   01:14:36  ( -68.59, -20.50)    3.27                29
 08/01/2021   15:50:48   ( -69.41, 119.54) 08/01/2021   15:51:57  ( -69.29, 120.99)   58.70                69
 08/01/2021   16:41:21   (  68.70, -72.17) 08/01/2021   16:41:33  (  68.67, -72.15)    3.06                12
 08/01/2021   17:32:02   ( -68.56,  95.33) 08/01/2021   17:31:03  ( -68.57,  95.36)    1.46                59
 08/04/2021   08:07:32   ( -68.77,-123.81) 08/04/2021   08:08:32  ( -68.77,-123.80)    0.67                60
 08/04/2021   08:58:16   (  68.65,  43.67) 08/04/2021   08:57:59  (  68.65,  43.70)    1.46                17
 08/04/2021   09:48:48   ( -68.03,-148.21) 08/04/2021   09:47:37  ( -68.10,-149.32)   46.94                71
 08/07/2021   00:24:28   ( -68.72,  -7.97) 08/07/2021   00:24:59  ( -68.74,  -7.95)    2.56                31
 08/07/2021   01:15:12   (  68.60, 159.50) 08/07/2021   01:14:26  (  68.62, 159.54)    2.89                46