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181084 (2005 QN38)
Classification: Main-belt Asteroid          SPK-ID: 2181084
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1270800893918212 5.2641e-08  
a 2.725097672313049 2.0289e-08 au
q 2.378792016514062 1.3638e-07 au
i 9.922731684775368 5.0126e-06 deg
node 151.3058056920644 2.5051e-05 deg
peri 150.454001033696 3.4093e-05 deg
M 172.3076529371295 2.7354e-05 deg
tp 2458414.045499458773
(2018-Oct-22.54549946)
0.0001193 TDB
period 1643.128528354722
4.50
1.8351e-05
5.024e-08
d
yr
n .2190942423478406 2.4469e-09 deg/d
Q 3.071403328112035 2.2868e-08 au
  Orbit Determination Parameters
   # obs. used (total)      428  
   data-arc span      7561 days (20.70 yr)  
   first obs. used      2000-06-04  
   last obs. used      2021-02-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53288  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:29:09  

Additional Information
 Earth MOID = 1.36739 au 
 Jupiter MOID = 2.20591 au 
 T_jup = 3.324 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457605.5 (2016-Aug-05.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1288199296978904 5.2678e-08  
q 2.372259887347211 1.3667e-07 au
tp 2458413.072129554035
(2018-Oct-21.57212955)
0.00011815 TDB
node 151.3923866231146 2.5023e-05 deg
peri 150.3063071704912 3.3932e-05 deg
i 9.930781790768354 5.0177e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      428  
   data-arc span      7561 days (20.70 yr)  
   first obs. used      2000-06-04  
   last obs. used      2021-02-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53288  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:29:09  

Additional Information
 Jupiter MOID = 2.20591 au 
 T_jup = 3.324 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.774950123851412E-15 -7.152057271876289E-15 3.474690290397027E-12 1.274862462143827E-14 5.763180088852E-13 -2.329024202395636E-15
q -7.152057271876289E-15 1.86797412996686E-14 -8.208833558525702E-12 -3.195162574192602E-14 -1.356920397743793E-12 5.594961623727474E-15
tp 3.474690290397027E-12 -8.208833558525702E-12 1.395939461801136E-8 2.336147769040189E-11 2.708987025691747E-9 -1.434434406742012E-11
node 1.274862462143827E-14 -3.195162574192602E-14 2.336147769040189E-11 6.26132023764967E-10 -6.119763119786245E-10 2.253850233200466E-11
peri 5.763180088852E-13 -1.356920397743793E-12 2.708987025691747E-9 -6.119763119786245E-10 1.151410213428212E-9 -2.515027157477641E-11
i -2.329024202395636E-15 5.594961623727474E-15 -1.434434406742012E-11 2.253850233200466E-11 -2.515027157477641E-11 2.517693774831765E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.81   n/a MPCxxxxx  

181084 (2005 QN38)          Discovered 2005-Aug-25 by CINEOS at Campo Imperatore
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

[ show close-approach data ]
Alternate Designations
 2005 QN38 = 2004 GV76 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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