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5655 Barney (1159 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2005655
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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03887225110238055 1.231e-08  
a 2.579107841856143 9.4238e-09 au
q 2.478852114207392 3.583e-08 au
i 14.49412972793743 7.8532e-07 deg
node 193.4731512289429 2.8728e-06 deg
peri 21.20790642620574 2.4405e-05 deg
M 290.7342601769086 2.5964e-05 deg
tp 2459491.584215835033
(2021-Oct-04.08421584)
0.00010935 TDB
period 1512.873723261347
4.14
8.2919e-06
2.27e-08
d
yr
n .2379577320068309 1.3042e-09 deg/d
Q 2.679363569504893 9.7902e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2619  
   data-arc span      17334 days (47.46 yr)  
   first obs. used      1973-09-29  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42944  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 17:48:10  

Additional Information
 Earth MOID = 1.47771 au 
 Jupiter MOID = 2.27948 au 
 T_jup = 3.380 
[ 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 13.15   n/a E2021B10  
diameter diameter 6.599 km 0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.661 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 0.256   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

5655 Barney (1159 T-2)          Discovered 1973-Sep-29 by van Houten and Gehrels at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1159 T-2 = 1988 EN1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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