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20114 (1995 UQ44)
Classification: Main-belt Asteroid          SPK-ID: 2020114
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1711448563020582 1.4053e-08  
a 2.576556870934634 8.2236e-09 au
q 2.135592415504445 3.4774e-08 au
i 12.94896460524585 5.504e-07 deg
node 16.97822055213757 2.09e-06 deg
peri 303.1973275230197 7.1267e-06 deg
M 80.45758033849887 5.8426e-06 deg
tp 2458862.884409840965
(2020-Jan-14.38440984)
2.3911e-05 TDB
period 1510.62972495452
4.14
7.2322e-06
1.98e-08
d
yr
n .23831121157823 1.1409e-09 deg/d
Q 3.017521326364822 9.631e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2213  
   data-arc span      9268 days (25.37 yr)  
   first obs. used      1995-10-22  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4688  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:13:17  

Additional Information
 Earth MOID = 1.15287 au 
 Jupiter MOID = 2.43572 au 
 T_jup = 3.371 
[ 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 13.79   n/a E2021B10  
diameter diameter 4.698 km 0.319 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.98658 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 0.265   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20114 (1995 UQ44)          Discovered 1995-Oct-26 by Hirasawa, M., Suzuki, S. at Nyukasa
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 UQ44 = 1998 HS140 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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