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JPL Small-Body Database Browser
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18539 (1996 XX30)
Classification: Main-belt Asteroid          SPK-ID: 2018539
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2125968382248371 3.7994e-08  
a 2.599360126015236 1.0849e-08 au
q 2.046744381816683 9.6332e-08 au
i 3.654932233932213 4.0186e-06 deg
node 241.1546136885155 7.136e-05 deg
peri 184.5484910405353 7.2134e-05 deg
M 144.1549804904827 1.228e-05 deg
tp 2457987.549707423088
(2017-Aug-22.04970742)		 5.0423e-05 TDB
period 1530.728279917161
4.19		 9.583e-06
2.624e-08		 d
yr
n .2351821709464219 1.4723e-09 deg/d
Q 3.15197587021379 1.3155e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1307  
   data-arc span      14522 days (39.76 yr)  
   first obs. used      1979-11-14  
   last obs. used      2019-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52325  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:26:14  

Additional Information
 Earth MOID = 1.06015 au 
 Jupiter MOID = 2.1668 au 
 T_jup = 3.380 
[ 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 14.3   n/a MPO384913  
diameter diameter 3.626 km 0.986 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.308   0.108 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18539 (1996 XX30)          Discovered 1996-Dec-14 by Kobayashi, T. at Oizumi
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1996 XX30 = 1979 VN3 = 1991 PH17 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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