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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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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04470832500448028 4.4683e-08  
a 2.657836769641201 1.6069e-08 au
q 2.539009339535224 1.2825e-07 au
i 22.77444764053456 6.5735e-06 deg
node 57.48011505252431 9.8502e-06 deg
peri 45.77431523355979 7.85e-05 deg
M 304.0439769781418 7.7738e-05 deg
tp 2459446.500066383789
(2021-Aug-20.00006638)
0.00034256 TDB
period 1582.671875439925
4.33
1.4353e-05
3.93e-08
d
yr
n .2274634468372879 2.0629e-09 deg/d
Q 2.776664199747177 1.6788e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1187  
   data-arc span      7793 days (21.34 yr)  
   first obs. used      1999-11-01  
   last obs. used      2021-03-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48895  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:45:34  

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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