Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 4 17.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(AQUA) AQUA Lat/Lon    Distance(km)  Time Diff(sec)
 04/17/2021   10:31:29   ( -46.10,-143.04) 04/17/2021   10:32:12  ( -46.16,-142.77)   22.00                43
 04/17/2021   11:46:42   (  46.00,-143.49) 04/17/2021   11:45:30  (  46.11,-143.93)   35.87                72
 04/20/2021   02:47:49   ( -46.11, -27.11) 04/20/2021   02:48:41  ( -46.17, -26.89)   17.79                52
 04/20/2021   04:03:01   (  46.05, -27.54) 04/20/2021   04:01:58  (  46.16, -28.03)   40.08                63
 04/22/2021   19:04:08   ( -46.07,  88.84) 04/22/2021   19:05:09  ( -46.12,  89.00)   13.66                61
 04/22/2021   19:55:10   (  46.94,-104.20) 04/22/2021   19:54:54  (  47.03,-103.71)   38.37                16
 04/25/2021   11:20:28   ( -46.08,-155.23) 04/25/2021   11:21:37  ( -46.08,-155.10)    9.56                69
 04/25/2021   12:11:21   (  46.43,  11.94) 04/25/2021   12:11:14  (  46.52,  12.36)   33.70                 7
 04/28/2021   03:39:50   ( -56.55, -44.32) 04/28/2021   03:41:03  ( -56.58, -43.96)   22.90                73
 04/28/2021   04:27:34   (  46.10, 128.01) 04/28/2021   04:27:35  (  46.14, 128.38)   29.35                 1
 04/30/2021   20:01:54   ( -75.05,  48.49) 04/30/2021   20:03:07  ( -75.28,  49.98)   49.98                73
 04/30/2021   20:43:53   (  46.06,-116.04) 04/30/2021   20:44:03  (  46.12,-115.73)   25.05                10