Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2021 5 3.  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)
 05/05/2021   17:31:12   (  69.38, -85.60) 05/05/2021   17:32:20  (  69.23, -83.83)   71.93                68
 05/05/2021   18:21:39   ( -68.50,  82.93) 05/05/2021   18:22:01  ( -68.50,  82.90)    1.53                22
 05/05/2021   19:12:23   (  68.37,-109.60) 05/05/2021   19:11:28  (  68.39,-109.59)    2.52                55
 05/08/2021   09:47:55   (  68.61,  31.22) 05/08/2021   09:48:58  (  68.59,  31.24)    3.00                63
 05/08/2021   10:38:36   ( -68.47,-161.27) 05/08/2021   10:38:28  ( -68.48,-161.25)    1.28                 8
 05/08/2021   11:29:13   (  67.97,   6.68) 05/08/2021   11:28:01  (  68.03,   5.85)   34.95                72
 05/11/2021   02:04:50   (  68.54, 147.09) 05/11/2021   02:05:24  (  68.55, 147.08)    1.58                34
 05/11/2021   02:55:32   ( -68.44, -45.47) 05/11/2021   02:54:54  ( -68.45, -45.41)    2.60                38
 05/13/2021   17:31:09   ( -68.95,  94.98) 05/13/2021   17:32:20  ( -68.85,  95.69)   30.43                71
 05/13/2021   18:21:47   (  68.52, -97.13) 05/13/2021   18:21:51  (  68.51, -97.09)    1.82                 4
 05/13/2021   19:12:28   ( -68.37,  70.39) 05/13/2021   19:11:22  ( -68.35,  70.36)    1.89                66
 05/16/2021   09:48:00   ( -68.61,-148.80) 05/16/2021   09:48:51  ( -68.59,-148.76)    3.16                51
 05/16/2021   10:38:43   (  68.45,  18.73) 05/16/2021   10:38:18  (  68.46,  18.74)    1.65                25
 05/16/2021   11:29:10   ( -67.54,-172.82) 05/16/2021   11:28:02  ( -67.59,-174.65)   78.14                68