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303775 (2005 QU182)
Classification: TransNeptunian Object          SPK-ID: 2303775
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6754403996342829 1.8013e-05  
a 113.5690846568996 0.0072673 au
q 36.85993673014363 0.00040359 au
i 14.0459695717703 2.5455e-05 deg
node 78.28572864388511 0.00020692 deg
peri 224.2151036597324 0.001222 deg
M 14.4942633486094 0.0015304 deg
tp 2441202.046752060014
(1971-Sep-07.54675206)
0.17211 TDB
period 442067.5280384728
1210.31
42.432
0.1162
d
yr
n .0008143552221475754 7.8166e-08 deg/d
Q 190.2782325836556 0.012176 au
  Orbit Determination Parameters
   # obs. used (total)      347  
   data-arc span      16913 days (46.31 yr)  
   first obs. used      1974-06-17  
   last obs. used      2020-10-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .45436  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 19:18:38  

Additional Information
 Earth MOID = 35.8595 au 
 Jupiter MOID = 31.813 au 
 T_jup = 6.730 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 3.6   n/a MPO418590  
rotation period rot_per 9.61 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Benecchi, S.D.; Sheppard, S.S. (2013) Astron. J. 145, A124.]

303775 (2005 QU182)          Discovered 2005-Aug-30 by Palomar at Palomar
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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