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452181 (2015 RQ89)
Classification: Main-belt Asteroid          SPK-ID: 2452181
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 .1792637837334403 6.4763e-08  
a 2.393452322549859 1.8465e-08 au
q 1.96439300302398 1.507e-07 au
i .977903331428591 7.0358e-06 deg
node 204.71991078285 0.00026829 deg
peri 188.2527757997817 0.00026899 deg
M 77.48860867048722 1.5393e-05 deg
tp 2458709.380725442738
(2019-Aug-13.88072544)
5.7702e-05 TDB
period 1352.494781346231
3.70
1.5651e-05
4.285e-08
d
yr
n .2661747793523219 3.0802e-09 deg/d
Q 2.822511642075737 2.1775e-08 au
  Orbit Determination Parameters
   # obs. used (total)      177  
   data-arc span      6522 days (17.86 yr)  
   first obs. used      2002-02-20  
   last obs. used      2019-12-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51855  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 06:43:18  

Additional Information
 Earth MOID = .970501 au 
 Jupiter MOID = 2.6087 au 
 T_jup = 3.508 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.7   n/a MPO495254  

452181 (2015 RQ89)          Discovered 2004-Oct-13 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-11-30

Alternate Designations
 2015 RQ89 = 2004 TJ341 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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