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212080 (2005 EJ84)
Classification: Main-belt Asteroid          SPK-ID: 2212080
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1704089124397645 9.0358e-08  
a 2.463001487359855 2.0043e-08 au
q 2.04328408256134 2.1147e-07 au
i 10.66468949523226 7.1954e-06 deg
node 345.6313941075787 2.8146e-05 deg
peri 202.672956384275 3.2278e-05 deg
M 310.9379817875798 1.7181e-05 deg
tp 2459192.914743697504
(2020-Dec-09.41474370)
6.8746e-05 TDB
period 1411.872365934711
3.87
1.7234e-05
4.718e-08
d
yr
n .2549805553858737 3.1124e-09 deg/d
Q 2.882718892158371 2.3459e-08 au
  Orbit Determination Parameters
   # obs. used (total)      247  
   data-arc span      6461 days (17.69 yr)  
   first obs. used      2001-01-05  
   last obs. used      2018-09-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48688  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 08:29:59  

Additional Information
 Earth MOID = 1.0496 au 
 Jupiter MOID = 2.09867 au 
 T_jup = 3.445 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456795.5 (2014-May-18.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1704931579481554 9.0377e-08  
q 2.04314120334029 2.1159e-07 au
tp 2456370.202665369396
(2013-Mar-18.70266537)
5.5751e-05 TDB
node 345.6613593056159 2.8128e-05 deg
peri 202.7998788678918 3.2254e-05 deg
i 10.66838958351602 7.1969e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      247  
   data-arc span      6461 days (17.69 yr)  
   first obs. used      2001-01-05  
   last obs. used      2018-09-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48688  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 08:29:59  

Additional Information
 Jupiter MOID = 2.09867 au 
 T_jup = 3.445 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.167931235735371E-15 -1.909166450337621E-14 4.226295657652344E-13 6.486633733012856E-14 -2.559160895179606E-15 -2.480947288064225E-14
q -1.909166450337621E-14 4.476994198570159E-14 -9.446164232995049E-13 -1.519267595448276E-13 2.525268164488005E-14 5.92876387875525E-14
tp 4.226295657652344E-13 -9.446164232995049E-13 3.108122690185171E-9 7.845900529767671E-12 8.966602558044262E-10 -5.739975134214414E-12
node 6.486633733012856E-14 -1.519267595448276E-13 7.845900529767671E-12 7.912049023024819E-10 -7.753312968180439E-10 5.727782874173277E-11
peri -2.559160895179606E-15 2.525268164488005E-14 8.966602558044262E-10 -7.753312968180439E-10 1.040330732811146E-9 -5.766467183838441E-11
i -2.480947288064225E-14 5.92876387875525E-14 -5.739975134214414E-12 5.727782874173277E-11 -5.766467183838441E-11 5.179594303252999E-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 16.6   n/a MPO454522  
diameter diameter 3.164 km 1.159 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.044   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

212080 (2005 EJ84)          Discovered 2005-Mar-04 by LINEAR at Socorro
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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