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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6763084142987602 1.7662e-05  
a 114.02328822702 0.0071233 au
q 36.9083789730736 0.00038224 au
i 14.04159503276025 2.4559e-05 deg
node 78.31502052502336 0.00019763 deg
peri 224.3529215334567 0.0011604 deg
M 14.54791454006255 0.0014963 deg
tp 2441228.889026644374
(1971-Oct-04.38902664)
0.16554 TDB
period 444722.158120418
1217.58
41.674
0.1141
d
yr
n .0008094941828882796 7.5856e-08 deg/d
Q 191.1381974809663 0.011941 au
  Orbit Determination Parameters
   # obs. used (total)      361  
   data-arc span      17007 days (46.56 yr)  
   first obs. used      1974-06-17  
   last obs. used      2021-01-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      1  
   norm. resid. RMS      .45946  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 05:48:30  

Additional Information
 Earth MOID = 35.9061 au 
 Jupiter MOID = 31.8624 au 
 T_jup = 6.736 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457466.5 (2016-Mar-19.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6671057262320983 1.7435e-05  
q 36.81955521866501 0.00038606 au
tp 2441071.261104261495
(1971-Apr-29.76110426)
0.16881 TDB
node 78.38102275033981 0.00019863 deg
peri 223.6879680706309 0.0011841 deg
i 14.03390990827221 2.4618e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      361  
   data-arc span      17007 days (46.56 yr)  
   first obs. used      1974-06-17  
   last obs. used      2021-01-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      1  
   norm. resid. RMS      .45946  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 05:48:30  

Additional Information
 Jupiter MOID = 31.8624 au 
 T_jup = 6.736 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.039797973298884E-10 4.861528627633247E-9 2.878422111669692E-6 1.314291578357134E-11 1.732888860805621E-8 1.373559338208569E-11
q 4.861528627633247E-9 1.490439195490328E-7 5.428705398666348E-5 -9.54256545586122E-10 4.405936473581659E-7 4.455779728554624E-10
tp 2.878422111669692E-6 5.428705398666348E-5 .02849758129612845 -6.127861256072323E-9 .0001838416587100615 1.541865700708069E-7
node 1.314291578357134E-11 -9.54256545586122E-10 -6.127861256072323E-9 3.945266708532564E-8 -4.016426626143122E-8 -4.81726159721993E-9
peri 1.732888860805621E-8 4.405936473581659E-7 .0001838416587100615 -4.016426626143122E-8 1.402154757444576E-6 5.965503498792373E-9
i 1.373559338208569E-11 4.455779728554624E-10 1.541865700708069E-7 -4.81726159721993E-9 5.965503498792373E-9 6.060253509905814E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 3.83   n/a MPCxxxxx  
rotation period rot_per 9.61 h n/a LCDB (Rev. 2020-October); 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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