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13844 (1999 XW34)
Classification: Main-belt Asteroid          SPK-ID: 2013844
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1515368062543066 2.9493e-08  
a 2.302714410293402 6.8468e-09 au
q 1.95376842284177 6.6859e-08 au
i 4.826409692336858 3.1779e-06 deg
node 109.3239328570189 4.6749e-05 deg
peri 185.1436799838063 4.8608e-05 deg
M 144.3208349746062 1.3353e-05 deg
tp 2458488.835746192361
(2019-Jan-05.33574619)		 4.668e-05 TDB
period 1276.316973936305
3.49		 5.6924e-06
1.558e-08		 d
yr
n .2820615939077576 1.258e-09 deg/d
Q 2.651660397745033 7.8844e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1986  
   data-arc span      12701 days (34.77 yr)  
   first obs. used      1986-02-07  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48873  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:54:41  

Additional Information
 Earth MOID = .93775 au 
 Jupiter MOID = 2.52549 au 
 T_jup = 3.570 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1   n/a MPO502274  
diameter diameter 4.042 km 0.406 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 12.359 h n/a LCDB (Rev. 2020-October); 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:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.326   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13844 (1999 XW34)          Discovered 1999-Dec-06 by LINEAR at Socorro
Reference: 20000222/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XW34 = 1991 TZ = 1994 NF8 = 1998 VB10 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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