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305725 (2009 CD33)
Classification: Main-belt Asteroid          SPK-ID: 2305725
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1673242402858019 7.8098e-08  
a 2.46014668487627 2.0067e-08 au
q 2.048504509837714 1.8841e-07 au
i 2.189119133648971 8.9507e-06 deg
node 70.32573057837544 0.00017566 deg
peri 4.335748371475505 0.00018328 deg
M 38.07386108319515 4.0347e-05 deg
tp 2458851.438890056164
(2020-Jan-02.93889006)
0.00015905 TDB
period 1409.418379253
3.86
1.7244e-05
4.721e-08
d
yr
n .2554245107764254 3.1251e-09 deg/d
Q 2.871788859914826 2.3424e-08 au
  Orbit Determination Parameters
   # obs. used (total)      125  
   data-arc span      6882 days (18.84 yr)  
   first obs. used      2001-01-30  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64485  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 18:49:21  

Additional Information
 Earth MOID = 1.06355 au 
 Jupiter MOID = 2.38715 au 
 T_jup = 3.470 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.9   n/a MPO503303  

305725 (2009 CD33)          Discovered 2009-Feb-01 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1983-Apr-21 05:13 00:03 Iris 0.0423426919475654 0.0423371501570773 0.0423482375836907 3.12977615013678 3.12977610675761 2445445.717296086 2.84204793736592 888.216496465595 181.693140501537 -76.151538249429 33862.3713980493 T 8 CATAB v2.0f-lin.ifort 2019-Dec-14 18:49:23 2019-Dec-14 18:49
1995-Mar-29 12:13 00:05 Hygie 0.0306894076288538 0.0306803135625012 0.0306985028812127 3.82682311937174 3.82682279038715 2449806.008883650 5.42985629178308 561.830218243726 194.753862531641 39.1524581502034 16144.660712115 T 8 CATAB v2.0f-lin.ifort 2019-Dec-14 18:49:23 2019-Dec-14 18:49
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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