Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1574980756559186 2.91e-08  
a 2.45816839741687 8.2431e-09 au
q 2.07101160518552 7.1253e-08 au
i 2.984603379261505 4.3394e-06 deg
node 139.9138087415073 5.6447e-05 deg
peri 61.95842662662642 5.8183e-05 deg
M 175.5504839510106 1.4492e-05 deg
tp 2458314.039734939495
(2018-Jul-14.53973494)
5.6029e-05 TDB
period 1407.718679321586
3.85
7.0808e-06
1.939e-08
d
yr
n .2557329140318666 1.2863e-09 deg/d
Q 2.845325189648221 9.5413e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2479  
   data-arc span      24072 days (65.91 yr)  
   first obs. used      1954-09-04  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45982  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:48:19  

Additional Information
 Earth MOID = 1.0701 au 
 Jupiter MOID = 2.11299 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 13.1   n/a MPO492777 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. 2019-August); Warner et al., 2009 Published Reference List:
[Ditteon, R. (2019) Minor Planet Bull. 46, 127-129.]
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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2104-Sep-28 02:24 00:02 Psych 0.0442285311260156 0.0442211811830252 0.0442358815509447 4.35058311350214 4.3505830506235 2489800.599869573 1.51702654603136 433.185986080091 40.6442427522286 -32.4487564015697 88220.6240667108 T 32 CATAB v2.0f-lin.ifort 2020-Aug-24 22:48:37 2020-Aug-24 22:48

Alternate Designations
 1968 DL = 1949 KA1 = 1969 QS = 1976 JJ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-22 02:20 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin