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312576 (2009 HR69)
Classification: Main-belt Asteroid          SPK-ID: 2312576
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1179269124597609 8.9477e-08  
a 2.812680018523655 3.8668e-08 au
q 2.480989348201898 2.6587e-07 au
i 4.068350638078006 9.6538e-06 deg
node 192.9815101306229 8.7547e-05 deg
peri 172.8923629264532 9.2216e-05 deg
M 345.5650188357247 2.7299e-05 deg
tp 2459069.586412210873
(2020-Aug-08.08641221)
0.00013093 TDB
period 1722.974773078818
4.72
3.5531e-05
9.728e-08
d
yr
n .2089409581759046 4.3087e-09 deg/d
Q 3.144370688845413 4.3228e-08 au
  Orbit Determination Parameters
   # obs. used (total)      133  
   data-arc span      7802 days (21.36 yr)  
   first obs. used      1999-03-20  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63371  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 20:08:25  

Additional Information
 Earth MOID = 1.4794 au 
 Jupiter MOID = 2.31909 au 
 T_jup = 3.306 
[ 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 17.0   n/a MPO440462  

312576 (2009 HR69)          Discovered 2009-Apr-22 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ 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
1955-Jul-17 12:32 00:04 Europ 0.0353915088909474 0.0353758124468689 0.035407209652406 3.40631406492922 3.4063139767659 2435306.022167087 3.66389787652688 997.614333984426 85.1448266415953 38.5471475830532 38934.030277067 T 11 CATAB v2.0f-lin.ifort 2020-Aug-25 20:08:43 2020-Aug-25 20:08
2195-Feb-23 06:57 00:13 Amphi 0.0246537429162276 0.0246172107525111 0.0246904561207912 3.61040628248299 3.61040621789763 2522820.789293562 12.6155279640408 3798.47120373699 62.4310263648183 61.2981201484816 51785.1714556963 T 11 CATAB v2.0f-lin.ifort 2020-Aug-25 20:08:43 2020-Aug-25 20:08
2200-Nov-02 00:24 00:03 David 0.0463813130592671 0.0463339896661882 0.046428701887315 5.83973570349915 5.83973564772323 2524898.516840933 3.07315511872694 3621.85457206434 65.2616613600996 49.339212773677 80625.7996836032 T 11 CATAB v2.0f-lin.ifort 2020-Aug-25 20:08:43 2020-Aug-25 20:08

Alternate Designations
 2009 HR69 = 2008 CV64 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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