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2279 Barto (1968 DL)
Classification: Main-belt Asteroid          SPK-ID: 2002279
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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1573326087992403 1.5914e-08  
a 2.458588568300646 7.5597e-09 au
q 2.071772414885916 3.9639e-08 au
i 2.984561116539655 9.8583e-07 deg
node 139.9110461348285 8.7783e-06 deg
peri 61.92130489929072 1.0153e-05 deg
M 226.7377664021086 9.0014e-06 deg
tp 2459721.732876967012
(2022-May-22.23287697)
3.638e-05 TDB
period 1408.079623476261
3.86
6.4943e-06
1.778e-08
d
yr
n .2556673599971808 1.1792e-09 deg/d
Q 2.845404721715376 8.749e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3011  
   data-arc span      24297 days (66.52 yr)  
   first obs. used      1954-09-04  
   last obs. used      2021-03-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43681  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 13:34:46  

Additional Information
 Earth MOID = 1.07006 au 
 Jupiter MOID = 2.11177 au 
 T_jup = 3.472 
[ 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 13.11   n/a E2021B10 IRAS observations used: 5
diameter diameter 14.408 km 0.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 6.63 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Ditteon, R. (2019) Minor Planet Bull. 46, 127-129.]
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.065   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.618   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=1.14 deg.
U-B UB 0.218   0.025 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=1.14 deg.
Tholen spectral type spec_T F   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 4 color indices

2279 Barto (1968 DL)          Discovered 1968-Feb-25 by Chernykh, L. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1968 DL = 1949 KA1 = 1969 QS = 1976 JJ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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