Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 1 21.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-19) NOAA-19 Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/30/2021   08:47:02   (  78.68,  19.55) 01/30/2021   08:48:15  (  78.68,  19.41)    3.22                73
 01/30/2021   09:37:58   ( -78.68,-173.17) 01/30/2021   09:39:00  ( -78.69,-173.33)    3.37                62
 01/30/2021   10:29:03   (  78.66,  -6.08) 01/30/2021   10:29:45  (  78.68,  -5.99)    3.17                42
 01/30/2021   11:19:58   ( -78.70, 161.44) 01/30/2021   11:20:30  ( -78.69, 161.28)    3.53                32
 01/30/2021   12:11:03   (  78.68, -31.48) 01/30/2021   12:11:15  (  78.69, -31.39)    2.24                12
 01/30/2021   13:01:59   ( -78.68, 135.80) 01/30/2021   13:02:00  ( -78.70, 135.88)    2.55                 1
 01/30/2021   13:53:03   (  78.69, -56.87) 01/30/2021   13:52:45  (  78.69, -56.79)    1.76                18
 01/30/2021   14:43:59   ( -78.69, 110.41) 01/30/2021   14:43:30  ( -78.70, 110.48)    1.66                29
 01/30/2021   15:35:03   (  78.71, -82.26) 01/30/2021   15:34:15  (  78.70, -82.19)    2.04                48
 01/30/2021   16:25:59   ( -78.71,  85.02) 01/30/2021   16:25:00  ( -78.70,  85.08)    1.50                59
 01/30/2021   17:17:00   (  78.82,-106.90) 01/30/2021   17:15:49  (  78.85,-108.54)   35.38                71