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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
2708 Burns (1981 WT)
Classification: Main-belt Asteroid          SPK-ID: 2002708
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1775281356133719 3.9029e-08  
a 3.081080945913566 1.514e-08 au
q 2.534102389911646 1.2481e-07 au
i 2.782715245423261 3.9409e-06 deg
node 111.6478450080842 9.9818e-05 deg
peri 331.1520788291728 0.00010063 deg
M 300.7534248106484 1.2243e-05 deg
tp 2458925.597656601174
(2020-Mar-17.09765660)
6.7358e-05 TDB
period 1975.391083828542
5.41
1.456e-05
3.986e-08
d
yr
n .1822423938971504 1.3432e-09 deg/d
Q 3.628059501915485 1.7827e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2213  
   data-arc span      25501 days (69.82 yr)  
   first obs. used      1950-02-11  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46946  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:19:31  

Additional Information
 Earth MOID = 1.55049 au 
 Jupiter MOID = 1.61312 au 
 T_jup = 3.202 
[ 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 12.1   n/a MPO337271  
diameter diameter 20.085 km 0.110 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.315 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.084   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B B   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

2708 Burns (1981 WT)          Discovered 1981-Nov-24 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
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
1926-Feb-12 08:09 00:02 Jupiter 1.71685775970297 1.71685704717847 1.71685847222785 1.99738703494163 1.73287115968117 2424558.839487300 2.15669006617774 105.361366208849 21.6984850021006 -80.3885426997986 1808043.51108845 T 26 CATAB v2.0f-lin.ifort 2019-Dec-13 21:19:50 2019-Dec-13 21:19
1935-Nov-16 09:01 00:02 Jupiter 1.78557902344408 1.78557816027825 1.7855798866095 1.73366451819733 1.434174180525 2428122.875375571 1.8524104340534 99.6701450820866 39.3085589101792 -72.7459906497608 1706587.23089473 T 26 CATAB v2.0f-lin.ifort 2019-Dec-13 21:19:50 2019-Dec-13 21:19
1986-Jan-31 11:03 < 00:01 Jupiter 1.82810571400261 1.82810517434609 1.82810625365902 2.64003278068966 2.45827301084185 2446461.960412090 0.744494107713149 55.7324509200645 10.0535852430575 83.1371742060272 2363936.55342361 T 26 CATAB v2.0f-lin.ifort 2019-Dec-13 21:19:50 2019-Dec-13 21:19
1995-Nov-01 10:44 < 00:01 Jupiter 1.68140578785124 1.68140538756721 1.6814061881348 1.49973252436975 1.11430721768692 2450022.947493769 0.491630907884033 97.1060168366911 90.1177160832795 9.6854598029128 2060139.20617472 T 26 CATAB v2.0f-lin.ifort 2019-Dec-13 21:19:50 2019-Dec-13 21:19
2046-Jan-11 21:14 < 00:01 Jupiter 1.96410606016789 1.96410549886392 1.96410662147186 3.45862601074927 3.3316050294698 2468357.384896477 0.696735177877525 49.288349589384 18.1560787956822 78.0228415358196 2597365.86376263 T 26 CATAB v2.0f-lin.ifort 2019-Dec-13 21:19:50 2019-Dec-13 21:19
2055-Oct-15 22:42 00:01 Jupiter 1.63530196758025 1.63530162525383 1.63530230990621 1.49103468410211 1.08961579653317 2471921.445734987 1.00636249716561 113.031108019708 96.5748809757125 -1.58061818448775 2027694.00200453 T 26 CATAB v2.0f-lin.ifort 2019-Dec-13 21:19:50 2019-Dec-13 21:19
2115-Oct-01 05:58 00:02 Jupiter 1.65766957510209 1.65766891602036 1.6576702341842 1.71990123459246 1.39144404306626 2493820.748762221 2.46113568404771 143.667607173924 59.226517974675 -58.6411602962584 1573937.94735567 T 26 CATAB v2.0f-lin.ifort 2019-Dec-13 21:19:50 2019-Dec-13 21:19
2125-Jul-03 14:22 00:03 Jupiter 1.85940087019557 1.85939951431745 1.85940222607412 1.98743854602041 1.74322735409452 2497384.098480278 2.68015833728982 117.844222867223 12.6497756285448 -89.7252332886777 1822825.30903481 T 26 CATAB v2.0f-lin.ifort 2019-Dec-13 21:19:50 2019-Dec-13 21:19
2175-Sep-19 01:54 00:04 Jupiter 1.74388227376916 1.74388074372665 1.74388380381424 2.21287336360777 1.98125890605443 2515723.579496725 3.90241541247491 172.306245711387 11.0964749410861 -84.9749573084988 1589873.53324515 T 26 CATAB v2.0f-lin.ifort 2019-Dec-13 21:19:50 2019-Dec-13 21:19
2185-Jun-16 15:43 00:04 Jupiter 1.72461494193937 1.72461341252761 1.72461647134857 1.61631975915395 1.27679881254996 2519282.154868655 4.11938553296322 118.739092234338 67.0033333951765 -52.7259408361943 1159681.27147219 T 26 CATAB v2.0f-lin.ifort 2019-Dec-13 21:19:50 2019-Dec-13 21:19

Alternate Designations
 1981 WT = 1951 GG = 1961 DN = 1965 YB = 1978 EL3 = A912 AE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-28 16:49 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin