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JPL Small-Body Database Browser
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71145 (1999 XA183)
Classification: Main-belt Asteroid          SPK-ID: 2071145
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .133588762601941 6.8635e-08  
a 2.544464070427702 1.142e-08 au
q 2.204552263774167 1.7801e-07 au
i 15.2861461384664 5.2228e-06 deg
node 45.80495631912842 1.215e-05 deg
peri 315.9406804445232 1.959e-05 deg
M 74.68642367818967 1.4547e-05 deg
tp 2458692.938426476172
(2019-Jul-28.43842648)
6.0412e-05 TDB
period 1482.493885979329
4.06
9.9805e-06
2.733e-08
d
yr
n .2428340537554296 1.6348e-09 deg/d
Q 2.884375877081236 1.2946e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1837  
   data-arc span      23908 days (65.46 yr)  
   first obs. used      1954-10-31  
   last obs. used      2020-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47074  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 13:43:14  

Additional Information
 Earth MOID = 1.22911 au 
 Jupiter MOID = 2.62231 au 
 T_jup = 3.382 
[ 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 13.5   n/a MPO359240  
diameter diameter 6.136 km 0.178 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 12.0 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Kim, M.-J.; Choi, Y.-J.; Moon, H.-K.; Byun, Y.-I.; et al. (2014) Astron. J. 147, A56.]
geometric albedo albedo 0.246   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71145 (1999 XA183)          Discovered 1999-Dec-12 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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