Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
2531 Cambridge (1980 LD)
Classification: Main-belt Asteroid          SPK-ID: 2002531
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05690115704553415 5.6562e-08  
a 3.007623442511706 2.1126e-08 au
q 2.836486188675518 1.7271e-07 au
i 11.03361897958778 5.7688e-06 deg
node 104.3619336464283 3.4477e-05 deg
peri 32.36817396663862 6.9885e-05 deg
M 123.6872363121636 5.7759e-05 deg
tp 2456945.930140775159
(2014-Oct-15.43014078)
0.00030737 JED
period 1905.16949320638
5.22
2.0073e-05
5.496e-08
d
yr
n .1889595656888898 1.9909e-09 deg/d
Q 3.178760696347895 2.2328e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1280  
   data-arc span      31112 days (85.18 yr)  
   first obs. used      1931-01-11  
   last obs. used      2016-03-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49556  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 15:36:17  

Additional Information
 Earth MOID = 1.85629 au 
 Jupiter MOID = 1.90982 au 
 T_jup = 3.220 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.9 mag n/a MPO337269  
diameter diameter 19.15 km 1.9 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2
rotation period rot_per 12.20 h n/a LCDB (Rev. 2016-February); 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. (2016) Astron. J. 150, A75.]
geometric albedo albedo 0.2104   0.050 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2

2531 Cambridge (1980 LD)          Discovered 1980-Jun-11 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

[ show close-approach data ]
Alternate Designations
 1980 LD = 1931 AP = 1942 EQ = 1952 BG = 1963 FK = 1963 HD = 1971 VY = 1974 KH = A916 FE 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2016-May-03 14:24 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin