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JPL Small-Body Database Browser
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266996 (2010 XQ78)
Classification: Jupiter Trojan          SPK-ID: 2266996
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06478784671502093 1.3052e-07  
a 5.1998810470148 3.9028e-07 au
q 4.862991950804463 9.4063e-07 au
i 24.20458473583006 1.0694e-05 deg
node 92.68813815411835 2.1569e-05 deg
peri 329.3011198438576 9.9788e-05 deg
M 268.748139969044 0.00011341 deg
tp 2459698.311472353071
(2022-Apr-28.81147235)
0.0014514 TDB
period 4331.003553385491
11.86
0.0004876
1.335e-06
d
yr
n .08312161270765815 9.3581e-09 deg/d
Q 5.536770143225138 4.1556e-07 au
  Orbit Determination Parameters
   # obs. used (total)      158  
   data-arc span      5913 days (16.19 yr)  
   first obs. used      2002-04-10  
   last obs. used      2018-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51576  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 10:15:36  

Additional Information
 Earth MOID = 3.89522 au 
 Jupiter MOID = .241474 au 
 T_jup = 2.820 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457049.5 (2015-Jan-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06530154781239109 1.3021e-07  
q 4.855193769628331 9.3632e-07 au
tp 2455381.659365034234
(2010-Jul-04.15936503)
0.0011379 TDB
node 92.68536356827967 2.157e-05 deg
peri 330.0603926249136 9.9287e-05 deg
i 24.21106195538887 1.0699e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      158  
   data-arc span      5913 days (16.19 yr)  
   first obs. used      2002-04-10  
   last obs. used      2018-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51576  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 10:15:36  

Additional Information
 Jupiter MOID = .241474 au 
 T_jup = 2.820 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.695353223522096E-14 -1.155988501755526E-13 -1.974274748857681E-11 3.395634735696123E-14 -2.945194441328988E-12 1.615712270564097E-14
q -1.155988501755526E-13 8.766952562887103E-13 3.110019313655506E-10 -1.439722052636183E-13 3.727231499738137E-11 -9.463997318907626E-14
tp -1.974274748857681E-11 3.110019313655506E-10 1.294889100468495E-6 3.257389224922202E-10 1.093485763414915E-7 -2.038279877144416E-10
node 3.395634735696123E-14 -1.439722052636183E-13 3.257389224922202E-10 4.652672139260635E-10 -3.978534880929372E-10 -7.60617792931987E-11
peri -2.945194441328988E-12 3.727231499738137E-11 1.093485763414915E-7 -3.978534880929372E-10 9.85794154353475E-9 5.274221094366114E-11
i 1.615712270564097E-14 -9.463997318907626E-14 -2.038279877144416E-10 -7.60617792931987E-11 5.274221094366114E-11 1.14472298874896E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.9   n/a MPO454985  
diameter diameter 14.525 km 0.538 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.070   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

266996 (2010 XQ78)          Discovered 2009-Oct-01 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

Alternate Designations
 2010 XQ78 = 2010 BL65 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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