Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 7 26.  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   08:07:29   (  68.78,  56.19) 07/27/2021   08:08:38  (  68.80,  56.25)    3.06                69
 07/27/2021   08:58:10   ( -68.65,-136.32) 07/27/2021   08:58:09  ( -68.63,-136.32)    2.38                 1
 07/27/2021   09:48:51   (  68.35,  31.38) 07/27/2021   09:47:38  (  68.41,  31.05)   14.81                73
 07/30/2021   00:24:24   (  68.73, 172.03) 07/30/2021   00:25:05  (  68.73, 172.04)    0.48                41
 07/30/2021   01:15:05   ( -68.59, -20.48) 07/30/2021   01:14:35  ( -68.62, -20.46)    2.73                30
 08/01/2021   15:50:47   ( -69.39, 119.57) 08/01/2021   15:51:57  ( -69.26, 120.96)   56.24                70
 08/01/2021   16:41:20   (  68.67, -72.14) 08/01/2021   16:41:33  (  68.65, -72.18)    3.10                13
 08/01/2021   17:32:01   ( -68.54,  95.36) 08/01/2021   17:31:03  ( -68.55,  95.33)    1.43                58
 08/04/2021   08:07:32   ( -68.75,-123.78) 08/04/2021   08:08:33  ( -68.74,-123.83)    2.11                61
 08/04/2021   08:58:16   (  68.62,  43.70) 08/04/2021   08:58:00  (  68.62,  43.67)    1.03                16
 08/04/2021   09:48:49   ( -68.06,-148.25) 08/04/2021   09:47:38  ( -68.08,-149.35)   45.77                71
 08/07/2021   00:24:28   ( -68.70,  -7.95) 08/07/2021   00:25:00  ( -68.71,  -7.98)    2.14                32
 08/07/2021   01:15:12   (  68.58, 159.53) 08/07/2021   01:14:27  (  68.59, 159.51)    1.77                45