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103196 (1999 XA244)
Classification: Main-belt Asteroid          SPK-ID: 2103196
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04470832508030822 4.4713e-08  
a 2.657836771772765 1.6073e-08 au
q 2.539009341369951 1.2832e-07 au
i 22.77444732638607 6.5908e-06 deg
node 57.48011553963735 9.8724e-06 deg
peri 45.77431209142809 7.8841e-05 deg
M 304.0439792628121 7.806e-05 deg
tp 2459446.500056635603
(2021-Aug-20.00005664)
0.00034397 TDB
period 1582.671877343861
4.33
1.4356e-05
3.93e-08
d
yr
n .2274634465636519 2.0633e-09 deg/d
Q 2.776664202175579 1.6791e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1179  
   data-arc span      7749 days (21.22 yr)  
   first obs. used      1999-11-01  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48697  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:33:38  

Additional Information
 Earth MOID = 1.57641 au 
 Jupiter MOID = 2.40556 au 
 T_jup = 3.274 
[ 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 14.45   n/a E2021B55  
diameter diameter 4.079 km 0.782 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 705.405 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.243   0.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

103196 (1999 XA244)          Discovered 1999-Dec-05 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 XA244 = 2001 KG14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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