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442184 (2011 DB23)
Classification: Main-belt Asteroid          SPK-ID: 2442184
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1953140395159781 4.1681e-08  
a 2.248907917668503 3.5231e-08 au
q 1.809664627769201 1.0428e-07 au
i 6.146913034688987 5.7299e-06 deg
node 154.0961639993369 4.8884e-05 deg
peri 121.3165876155534 7.355e-05 deg
M 190.5672293444809 3.4288e-05 deg
tp 2459580.263471799405
(2021-Dec-31.76347180)
0.00010819 TDB
period 1231.844636903995
3.37
2.8947e-05
7.925e-08
d
yr
n .2922446461306929 6.8674e-09 deg/d
Q 2.688151207567805 4.2112e-08 au
  Orbit Determination Parameters
   # obs. used (total)      121  
   data-arc span      4703 days (12.88 yr)  
   first obs. used      2005-08-27  
   last obs. used      2018-07-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57632  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 09:49:58  

Additional Information
 Earth MOID = .802636 au 
 Jupiter MOID = 2.45383 au 
 T_jup = 3.596 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457350.5 (2015-Nov-24.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1954227238756618 4.1623e-08  
q 1.809213158636188 1.0444e-07 au
tp 2457117.333961045087
(2015-Apr-04.83396104)
0.0001519 TDB
node 154.1300660034236 4.8868e-05 deg
peri 121.3754006834712 7.358e-05 deg
i 6.14800783288818 5.7316e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      121  
   data-arc span      4703 days (12.88 yr)  
   first obs. used      2005-08-27  
   last obs. used      2018-07-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57632  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 09:49:58  

Additional Information
 Jupiter MOID = 2.45383 au 
 T_jup = 3.596 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.732477525500795E-15 -4.192496996898497E-15 5.617670188553202E-13 -1.739652708695455E-14 1.764083083030272E-13 -8.110570660493058E-15
q -4.192496996898497E-15 1.090730790387141E-14 -4.887086775691847E-12 8.508767340093078E-14 -1.690990809148781E-12 1.462004392135036E-14
tp 5.617670188553202E-13 -4.887086775691847E-12 2.307404952604468E-8 -2.421339653558358E-10 8.375714645233563E-9 4.319946362629414E-11
node -1.739652708695455E-14 8.508767340093078E-14 -2.421339653558358E-10 2.388126873396323E-9 -2.458006790816675E-9 4.949181644895861E-11
peri 1.764083083030272E-13 -1.690990809148781E-12 8.375714645233563E-9 -2.458006790816675E-9 5.413988547029416E-9 -3.360743532310478E-11
i -8.110570660493058E-15 1.462004392135036E-14 4.319946362629414E-11 4.949181644895861E-11 -3.360743532310478E-11 3.285147118943247E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.8   n/a MPO456095  

442184 (2011 DB23)          Discovered 2011-Feb-11 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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