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43004 (1999 UR16)
Classification: Main-belt Asteroid          SPK-ID: 2043004
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09242552392946768 4.2349e-08  
a 2.782994065212894 1.6168e-08 au
q 2.525774380642993 1.1869e-07 au
i 2.246281950229482 3.9606e-06 deg
node 256.9515205201188 0.00014626 deg
peri 148.7388438996258 0.00014924 deg
M 189.9998493938267 3.0783e-05 deg
tp 2460001.280801529711
(2023-Feb-25.78080153)
0.00014826 TDB
period 1695.769606807792
4.64
1.4777e-05
4.046e-08
d
yr
n .2122929898936468 1.85e-09 deg/d
Q 3.040213749782795 1.7662e-08 au
  Orbit Determination Parameters
   # obs. used (total)      933  
   data-arc span      9352 days (25.60 yr)  
   first obs. used      1994-10-09  
   last obs. used      2020-05-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54412  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:14:51  

Additional Information
 Earth MOID = 1.53452 au 
 Jupiter MOID = 2.28777 au 
 T_jup = 3.325 
[ 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 14.89   n/a E2021B10  
diameter diameter 2.949 km 1.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.203   0.161 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43004 (1999 UR16)          Discovered 1999-Oct-29 by CSS at Catalina
Reference: 20020624/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 UR16 = 2001 BQ33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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