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JPL Small-Body Database Browser
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249680 (1999 VH227)
Classification: Main-belt Asteroid          SPK-ID: 2249680
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3003388066650969 4.9106e-08  
a 3.013236736861714 3.2512e-08 au
q 2.108244811113236 1.5364e-07 au
i 21.06233358359126 9.7503e-06 deg
node 266.8439026272109 2.0459e-05 deg
peri 55.70505634687892 2.8722e-05 deg
M 286.4531289126382 2.3685e-05 deg
tp 2458990.810296075168
(2020-May-21.31029608)
0.00013044 TDB
period 1910.505566173649
5.23
3.0921e-05
8.466e-08
d
yr
n .1884317985636683 3.0497e-09 deg/d
Q 3.918228662610192 4.2276e-08 au
  Orbit Determination Parameters
   # obs. used (total)      370  
   data-arc span      7203 days (19.72 yr)  
   first obs. used      1999-10-13  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56331  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:18:56  

Additional Information
 Earth MOID = 1.1621 au 
 Jupiter MOID = 1.66836 au 
 T_jup = 3.082 
[ 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 14.2   n/a MPO433636  
diameter diameter 9.361 km 0.744 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.042   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

249680 (1999 VH227)          Discovered 1999-Nov-03 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ show close-approach data ]
Alternate Designations
 1999 VH227 = 2004 LM18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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