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JPL Small-Body Database Browser
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29603 (1998 MO44)
Classification: Jupiter Trojan          SPK-ID: 2029603
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03394982678888425 5.9883e-08  
a 5.146563165187105 1.2097e-07 au
q 4.971838237170951 3.4991e-07 au
i 33.39841255389196 6.6452e-06 deg
node 113.5690279466579 9.9348e-06 deg
peri 188.5716590391023 0.00011173 deg
M 240.6788512603809 0.00011675 deg
tp 2460013.978844933057
(2023-Mar-10.47884493)
0.0014066 TDB
period 4264.561559714036
11.68
0.00015036
4.117e-07
d
yr
n .08441664986168944 2.9764e-09 deg/d
Q 5.321288093203259 1.2508e-07 au
  Orbit Determination Parameters
   # obs. used (total)      898  
   data-arc span      15604 days (42.72 yr)  
   first obs. used      1976-08-20  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51533  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:34:09  

Additional Information
 Earth MOID = 3.95645 au 
 Jupiter MOID = .0753848 au 
 T_jup = 2.671 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456902.5 (2014-Sep-02.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03264307410380703 5.9749e-08  
q 4.988461308180066 3.4878e-07 au
tp 2455768.968882841973
(2011-Jul-26.46888284)
0.0013976 TDB
node 113.5645564929287 9.9375e-06 deg
peri 190.584937927777 0.00011627 deg
i 33.37498419288254 6.6405e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      898  
   data-arc span      15604 days (42.72 yr)  
   first obs. used      1976-08-20  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51533  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:34:09  

Additional Information
 Jupiter MOID = .0753848 au 
 T_jup = 2.671 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.569890227141108E-15 -1.964333310188893E-14 -1.424614625293063E-12 -1.796493971323292E-15 -2.33573185846582E-13 5.794708906877338E-15
q -1.964333310188893E-14 1.216490637829044E-13 7.413954896635668E-11 1.753752374774457E-15 7.090745301351015E-12 -1.598505519365381E-14
tp -1.424614625293063E-12 7.413954896635668E-11 1.953181921477615E-6 -2.002454618351229E-10 1.618979989134671E-7 5.970010455236998E-11
node -1.796493971323292E-15 1.753752374774457E-15 -2.002454618351229E-10 9.875408149744537E-11 -9.881675290367308E-11 -5.721258664859087E-12
peri -2.33573185846582E-13 7.090745301351015E-12 1.618979989134671E-7 -9.881675290367308E-11 1.351838174618245E-8 9.884692702916277E-12
i 5.794708906877338E-15 -1.598505519365381E-14 5.970010455236998E-11 -5.721258664859087E-12 9.884692702916277E-12 4.409638237679274E-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 11.1   n/a MPO435968  
diameter diameter 32.512 km 0.575 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
geometric albedo albedo 0.061   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

29603 (1998 MO44)          Discovered 1998-Jun-19 by LINEAR at Socorro
Reference: 20011002/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 MO44 = 1982 BU4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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