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14816 (1981 UQ22)
Classification: Main-belt Asteroid          SPK-ID: 2014816
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0844634982944637 3.3532e-08  
a 2.341951536129439 6.4299e-09 au
q 2.144142116551854 7.7466e-08 au
i 3.649896130124 3.8776e-06 deg
node 130.7017283910564 5.2323e-05 deg
peri 165.9454294259739 5.7263e-05 deg
M 13.77567074631333 2.3372e-05 deg
tp 2458950.407173718237
(2020-Apr-10.90717372)
8.5001e-05 TDB
period 1309.077270612087
3.58
5.3912e-06
1.476e-08
d
yr
n .2750028650575183 1.1325e-09 deg/d
Q 2.539760955707025 6.973e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2020  
   data-arc span      14266 days (39.06 yr)  
   first obs. used      1981-10-24  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48235  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:57:58  

Additional Information
 Earth MOID = 1.12848 au 
 Jupiter MOID = 2.59268 au 
 T_jup = 3.556 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457257.5 (2015-Aug-23.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08379744932264671 3.3554e-08  
q 2.145676072782793 7.7406e-08 au
tp 2457642.616982810310
(2016-Sep-11.11698281)
8.6075e-05 TDB
node 130.7302218175307 5.2356e-05 deg
peri 166.2010798777256 5.7347e-05 deg
i 3.648746334105842 3.8763e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2020  
   data-arc span      14266 days (39.06 yr)  
   first obs. used      1981-10-24  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48235  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:57:58  

Additional Information
 Jupiter MOID = 2.59268 au 
 T_jup = 3.556 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.12586930396374E-15 -2.590131143977951E-15 1.367234021144011E-12 7.516090799719398E-15 3.531271185835544E-13 -8.426134548881143E-17
q -2.590131143977951E-15 5.991665602295326E-15 -3.270787449108901E-12 -1.772208760338966E-14 -8.487655188368354E-13 2.682109537692124E-16
tp 1.367234021144011E-12 -3.270787449108901E-12 7.408845947318413E-9 1.65853934625379E-11 2.024649180111198E-9 -5.843273238564692E-13
node 7.516090799719398E-15 -1.772208760338966E-14 1.65853934625379E-11 2.741194002263E-9 -2.730833509116188E-9 9.012222874116117E-11
peri 3.531271185835544E-13 -8.487655188368354E-13 2.024649180111198E-9 -2.730833509116188E-9 3.288708915702939E-9 -9.011921177393525E-11
i -8.426134548881143E-17 2.682109537692124E-16 -5.843273238564692E-13 9.012222874116117E-11 -9.011921177393525E-11 1.502543089866429E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6   n/a MPO473967  

14816 (1981 UQ22)          Discovered 1981-Oct-24 by Bus, S. J. at Palomar
Reference: 20000523/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1981 UQ22 = 1998 KB48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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