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JPL Small-Body Database Browser
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19085 (1978 UR4)
Classification: Main-belt Asteroid          SPK-ID: 2019085
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1949676018458527 3.0651e-08  
a 2.359495460739653 8.2659e-09 au
q 1.899470289193067 7.3815e-08 au
i 2.459104197981323 4.3318e-06 deg
node 311.7659751410537 0.00010211 deg
peri 135.9366629160455 0.00010322 deg
M 124.1983583887636 1.3678e-05 deg
tp 2458543.790021055825
(2019-Mar-01.29002106)
4.9981e-05 TDB
period 1323.814537912427
3.62
6.9565e-06
1.905e-08
d
yr
n .2719414160292404 1.429e-09 deg/d
Q 2.819520632286238 9.8775e-09 au
  Orbit Determination Parameters
   # obs. used (total)      974  
   data-arc span      15070 days (41.26 yr)  
   first obs. used      1978-10-27  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55278  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:41:04  

Additional Information
 Earth MOID = .916797 au 
 Jupiter MOID = 2.39069 au 
 T_jup = 3.525 
[ show covariance matrix ]

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 15.6   n/a MPO365481  

19085 (1978 UR4)          Discovered 1978-Oct-27 by Olmstead, C. M. at Palomar
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1978 UR4 = 1982 YM = 1994 CE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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