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JPL Small-Body Database Browser
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312845 (2011 UQ55)
Classification: Main-belt Asteroid          SPK-ID: 2312845
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2275872515351875 7.4592e-08  
a 2.319438526187108 1.4356e-08 au
q 1.791563886907358 1.7238e-07 au
i 1.660007362997175 8.5016e-06 deg
node 55.37489214355094 0.00017807 deg
peri 309.2112242492949 0.00017897 deg
M 73.15104083809334 1.5781e-05 deg
tp 2458338.325326466964
(2018-Aug-07.82532647)
5.6497e-05 TDB
period 1290.246610171858
3.53
1.1979e-05
3.28e-08
d
yr
n .2790164276828047 2.5904e-09 deg/d
Q 2.847313165466857 1.7623e-08 au
  Orbit Determination Parameters
   # obs. used (total)      205  
   data-arc span      6729 days (18.42 yr)  
   first obs. used      2000-08-01  
   last obs. used      2019-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51988  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:29:08  

Additional Information
 Earth MOID = .789342 au 
 Jupiter MOID = 2.6076 au 
 T_jup = 3.543 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457129.5 (2015-Apr-17.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2275777762261548 7.4654e-08  
q 1.791309987438208 1.7243e-07 au
tp 2457045.731380457110
(2015-Jan-23.23138046)
5.741e-05 TDB
node 55.38202646877905 0.00017829 deg
peri 308.7270788447045 0.00017919 deg
i 1.660651802328367 8.49e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      205  
   data-arc span      6729 days (18.42 yr)  
   first obs. used      2000-08-01  
   last obs. used      2019-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51988  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:29:08  

Additional Information
 Jupiter MOID = 2.6076 au 
 T_jup = 3.543 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.573177536066029E-15 -1.284659627892227E-14 1.488507141316342E-12 -1.121543179528011E-14 1.42105089541716E-13 -2.331315190472166E-16
q -1.284659627892227E-14 2.973201308549661E-14 -3.562680562838041E-12 2.401030990162374E-14 -3.650105270087765E-13 5.998380422595355E-16
tp 1.488507141316342E-12 -3.562680562838041E-12 3.295866625753185E-9 -5.092036995993255E-12 1.010873262906947E-9 -1.436043201605591E-12
node -1.121543179528011E-14 2.401030990162374E-14 -5.092036995993255E-12 3.178710662262249E-8 -3.177385278294319E-8 1.503417135711213E-10
peri 1.42105089541716E-13 -3.650105270087765E-13 1.010873262906947E-9 -3.177385278294319E-8 3.210881078218125E-8 -1.507197854993628E-10
i -2.331315190472166E-16 5.998380422595355E-16 -1.436043201605591E-12 1.503417135711213E-10 -1.507197854993628E-10 7.208092697196289E-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 17.6   n/a MPO460291  

312845 (2011 UQ55)          Discovered 2000-Aug-01 by LINEAR at Socorro
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2011 UQ55 = 2000 PJ15 = 2010 JQ36 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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