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49472 (1999 AR30)
Classification: Main-belt Asteroid          SPK-ID: 2049472
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1251563714620884 4.625e-08  
a 2.995957571860793 1.7342e-08 au
q 2.620994393112328 1.3801e-07 au
i .5145729913287808 4.4558e-06 deg
node 162.3385671589702 0.00050261 deg
peri 222.2600741645371 0.00050286 deg
M 48.81081952731471 1.5651e-05 deg
tp 2458343.687881418642
(2018-Aug-13.18788142)
8.2084e-05 TDB
period 1894.095685845888
5.19
1.6446e-05
4.503e-08
d
yr
n .1900643154884896 1.6503e-09 deg/d
Q 3.370920750609259 1.9513e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1078  
   data-arc span      7772 days (21.28 yr)  
   first obs. used      1997-10-30  
   last obs. used      2019-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5744  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:50:42  

Additional Information
 Earth MOID = 1.62402 au 
 Jupiter MOID = 2.07591 au 
 T_jup = 3.242 
[ 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 14.5   n/a MPO337653  
diameter diameter 6.359 km 0.528 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.083   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49472 (1999 AR30)          Discovered 1999-Jan-14 by Spacewatch at Kitt Peak
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 AR30 = 2000 GL132 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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