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2984 Chaucer (1981 YD)
Classification: Main-belt Asteroid          SPK-ID: 2002984
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1346078896959348 4.6991e-08  
a 2.469931326170653 1.3858e-08 AU
q 2.13745908266094 1.1887e-07 AU
i 3.053645264559864 7.041e-06 deg
node 81.82883824758261 0.00012452 deg
peri 46.25534970146326 0.00012985 deg
M 93.41876834920896 3.4886e-05 deg
tp 2456432.576624702968
(2013-May-20.07662470)
0.00013645 JED
period 1417.835167894859
3.88
1.1932e-05
3.267e-08
d
yr
n .2539082173667003 2.1368e-09 deg/d
Q 2.802403569680366 1.5723e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1098  
   data-arc span      22116 days (60.55 yr)  
   first obs. used      1953-09-17  
   last obs. used      2014-04-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5545  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 13:42:50  

Additional Information
 Earth MOID = 1.15388 AU 
 T_jup = 3.470 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.0 mag n/a MPO256884  

2984 Chaucer (1981 YD)          Discovered 1981-Dec-30 by Bowell, E. at Flagstaff (AM) (688)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1981 YD = 1963 FB = 1965 UK1 = 1971 FZ = 1971 JA 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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