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18940 (2000 QV49)
Classification: Jupiter Trojan          SPK-ID: 2018940
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07505180427098893 5.4105e-08  
a 5.245219007528959 7.6382e-08 au
q 4.851555857217425 2.9407e-07 au
i 3.70593064147038 4.5668e-06 deg
node 133.698537278599 8.2739e-05 deg
peri 220.5877703334002 8.8468e-05 deg
M 230.4456226226322 3.4655e-05 deg
tp 2460779.541183325271
(2025-Apr-14.04118333)
0.00044131 TDB
period 4387.770120196667
12.01
9.5843e-05
2.624e-07
d
yr
n .08204623080478617 1.7922e-09 deg/d
Q 5.638882157840493 8.2114e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1265  
   data-arc span      13492 days (36.94 yr)  
   first obs. used      1984-03-29  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52722  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:42:53  

Additional Information
 Earth MOID = 3.84588 au 
 Jupiter MOID = .134295 au 
 T_jup = 2.990 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.63   n/a E2021B10  
diameter diameter 21.423 km 0.762 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
geometric albedo albedo 0.106   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

18940 (2000 QV49)          Discovered 2000-Aug-24 by LINEAR at Socorro
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 QV49 = 1989 ST6 = 1997 LK13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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