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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08419807855257182 3.3154e-08  
a 2.341144903747616 6.3639e-09 au
q 2.144025001238921 7.6494e-08 au
i 3.650171529472334 3.7934e-06 deg
node 130.7038393560051 5.2271e-05 deg
peri 165.8120673775678 5.7247e-05 deg
M 68.92715781657044 2.3441e-05 deg
tp 2458949.987881657305
(2020-Apr-10.48788166)
8.5261e-05 TDB
period 1308.401005643806
3.58
5.335e-06
1.461e-08
d
yr
n .2751450040523777 1.1219e-09 deg/d
Q 2.538264806256311 6.8998e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2144  
   data-arc span      14356 days (39.30 yr)  
   first obs. used      1981-10-24  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48071  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:40:01  

Additional Information
 Earth MOID = 1.12638 au 
 Jupiter MOID = 2.59238 au 
 T_jup = 3.557 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457368.5 (2015-Dec-12.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08380250768891043 3.3231e-08  
q 2.145274496181832 7.6652e-08 au
tp 2457642.992901281364
(2016-Sep-11.49290128)
8.594e-05 TDB
node 130.7282615314658 5.231e-05 deg
peri 166.3289829857289 5.7292e-05 deg
i 3.648693642273388 3.7914e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2144  
   data-arc span      14356 days (39.30 yr)  
   first obs. used      1981-10-24  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48071  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:40:01  

Additional Information
 Jupiter MOID = 2.59238 au 
 T_jup = 3.557 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.10430050278082E-15 -2.540186878321671E-15 1.368456745585086E-12 7.421797998892824E-15 3.53126283266959E-13 -1.401626940770832E-16
q -2.540186878321671E-15 5.875552546080486E-15 -3.275361435118759E-12 -1.751841421878684E-14 -8.489279756343244E-13 4.006367987826717E-16
tp 1.368456745585086E-12 -3.275361435118759E-12 7.385750173630148E-9 1.683271534436338E-11 2.018907939882647E-9 -7.414487464750326E-13
node 7.421797998892824E-15 -1.751841421878684E-14 1.683271534436338E-11 2.736349655383276E-9 -2.725940402923156E-9 9.00147375529718E-11
peri 3.53126283266959E-13 -8.489279756343244E-13 2.018907939882647E-9 -2.725940402923156E-9 3.282345604164666E-9 -9.005571809956812E-11
i -1.401626940770832E-16 4.006367987826717E-16 -7.414487464750326E-13 9.00147375529718E-11 -9.005571809956812E-11 1.437441977352173E-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 14.63   n/a MPCxxxxx  

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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