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19276 (1995 XS4)
Classification: Main-belt Asteroid          SPK-ID: 2019276
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1626517772225196 4.0756e-08  
a 3.03638801549734 2.0319e-08 au
q 2.542514108439539 1.274e-07 au
i 11.73212908087417 5.9231e-06 deg
node 226.9807791308511 2.0929e-05 deg
peri 116.1687172820119 2.7873e-05 deg
M 329.6355048565963 1.9798e-05 deg
tp 2459363.503861848293
(2021-May-29.00386185)
0.00010712 TDB
period 1932.565978398407
5.29
1.9399e-05
5.311e-08
d
yr
n .1862808328532959 1.8698e-09 deg/d
Q 3.530261922555142 2.3624e-08 au
  Orbit Determination Parameters
   # obs. used (total)      733  
   data-arc span      9571 days (26.20 yr)  
   first obs. used      1994-06-06  
   last obs. used      2020-08-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53104  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:50:25  

Additional Information
 Earth MOID = 1.56091 au 
 Jupiter MOID = 2.09101 au 
 T_jup = 3.190 
[ 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 14.43   n/a E2021B10  
diameter diameter 5.087 km 0.211 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.764 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.130   0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19276 (1995 XS4)          Discovered 1995-Dec-14 by Spacewatch at Kitt Peak
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1995 XS4 = 2000 SM336 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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