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212992 (2009 DW56)
Classification: Main-belt Asteroid          SPK-ID: 2212992
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06407660721071029 6.0327e-08  
a 2.661547998388464 2.2805e-08 au
q 2.491005032723274 1.6607e-07 au
i 3.937302067705147 5.2559e-06 deg
node 74.90541376408362 8.9019e-05 deg
peri 261.3317758216131 9.9483e-05 deg
M 45.02730299969586 4.2512e-05 deg
tp 2458802.131223410076
(2019-Nov-14.63122341)
0.00018766 TDB
period 1585.987940980052
4.34
2.0384e-05
5.581e-08
d
yr
n .2269878545088685 2.9173e-09 deg/d
Q 2.832090964053653 2.4266e-08 au
  Orbit Determination Parameters
   # obs. used (total)      269  
   data-arc span      5788 days (15.85 yr)  
   first obs. used      2003-12-28  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57104  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 16:54:09  

Additional Information
 Earth MOID = 1.4849 au 
 Jupiter MOID = 2.39485 au 
 T_jup = 3.379 
[ 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 16.2   n/a MPO440128  

212992 (2009 DW56)          Discovered 2009-Feb-22 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ 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
2120-May-10 11:48 00:29 Psych 0.0135953385976448 0.0135906569990565 0.0136001240069573 1.81261303937409 1.81261254840055 2495503.991328549 28.6035902269011 1919.91770035777 48.0800323168219 -83.1259740500318 41812.9382364157 T 13 CATAB v2.0f-lin.ifort 2019-Dec-04 16:54:18 2019-Dec-04 16:54

Alternate Designations
 2009 DW56 = 2005 JA72 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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