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312534 (2009 DH142)
Classification: Main-belt Asteroid          SPK-ID: 2312534
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1598791239039975 3.025e-08  
a 2.592262615247931 2.2118e-08 au
q 2.177813939393006 8.3216e-08 au
i 9.303165092009909 7.1712e-06 deg
node 312.9582179987142 2.1733e-05 deg
peri 277.6613600028106 3.4441e-05 deg
M 261.8505088619905 2.8402e-05 deg
tp 2459616.125775893152
(2022-Feb-05.62577589)
0.00012326 TDB
period 1524.46311831759
4.17
1.9511e-05
5.342e-08
d
yr
n .2361487107653342 3.0224e-09 deg/d
Q 3.006711291102855 2.5655e-08 au
  Orbit Determination Parameters
   # obs. used (total)      403  
   data-arc span      9187 days (25.15 yr)  
   first obs. used      1995-12-26  
   last obs. used      2021-02-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4709  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 06:30:20  

Additional Information
 Earth MOID = 1.18974 au 
 Jupiter MOID = 2.10224 au 
 T_jup = 3.382 
[ 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 16.0   n/a MPO450244  
diameter diameter 3.673 km 0.590 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

312534 (2009 DH142)          Discovered 2009-Feb-27 by Siding Spring Survey at Siding Spring
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
2042-Feb-02 03:38 00:02 Hebe 0.0450034347574183 0.0449854351121133 0.0450214344422853 9.71328165603798 9.71328164181647 2466917.651194328 1.72340614298429 899.964045513522 107.124116192728 -4.29667333396877 8820.04622066059 T 21 CATAB v2.0f-lin.ifort 2021-Apr-14 06:30:21 2021-Apr-14 06:30
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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