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469618 (2004 QM28)
Classification: Main-belt Asteroid          SPK-ID: 2469618
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1076804976490933 1.0185e-07  
a 2.56129518871241 3.8993e-08 au
q 2.285493648165629 2.6499e-07 au
i 4.923087771255414 7.7551e-06 deg
node 232.5041235306654 0.00013693 deg
peri 55.05985123485727 0.00014269 deg
M 350.5215075715922 4.1556e-05 deg
tp 2459039.920728346787
(2020-Jul-09.42072835)
0.000173 TDB
period 1497.227783008022
4.10
3.4191e-05
9.361e-08
d
yr
n .2404443759898297 5.4908e-09 deg/d
Q 2.837096729259191 4.3192e-08 au
  Orbit Determination Parameters
   # obs. used (total)      39  
   data-arc span      4855 days (13.29 yr)  
   first obs. used      2004-08-25  
   last obs. used      2017-12-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60846  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 15:33:11  

Additional Information
 Earth MOID = 1.2735 au 
 Jupiter MOID = 2.29182 au 
 T_jup = 3.421 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457283.5 (2015-Sep-18.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1064298049874597 1.0202e-07  
q 2.287689282012664 2.646e-07 au
tp 2457543.954513204002
(2016-Jun-04.45451320)
0.00017132 TDB
node 232.5210868292402 0.00013688 deg
peri 55.18115172369613 0.00014276 deg
i 4.923954629165198 7.7565e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      39  
   data-arc span      4855 days (13.29 yr)  
   first obs. used      2004-08-25  
   last obs. used      2017-12-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60846  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 15:33:11  

Additional Information
 Jupiter MOID = 2.29182 au 
 T_jup = 3.421 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.040728852319508E-14 -2.675644226206167E-14 6.760138429405933E-12 3.010864233887069E-13 1.385903244685209E-12 -1.830466399148745E-14
q -2.675644226206167E-14 7.001144478990036E-14 -1.729762419964523E-11 -7.691139919544668E-13 -3.605029710243441E-12 4.959717343033849E-14
tp 6.760138429405933E-12 -1.729762419964523E-11 2.935115471964775E-8 3.985704517458811E-10 7.143562770042304E-9 -1.277499261120375E-11
node 3.010864233887069E-13 -7.691139919544668E-13 3.985704517458811E-10 1.873642069450815E-8 -1.856648259405944E-8 1.798459745596872E-10
peri 1.385903244685209E-12 -3.605029710243441E-12 7.143562770042304E-9 -1.856648259405944E-8 2.037906309308687E-8 -1.823588496526208E-10
i -1.830466399148745E-14 4.959717343033849E-14 -1.277499261120375E-11 1.798459745596872E-10 -1.823588496526208E-10 6.016347872025279E-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 MPO434689  

469618 (2004 QM28)          Discovered 2004-Aug-25 by Spacewatch at Kitt Peak
Reference: Last Updated: 2016-08-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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