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52314 (1991 XD)
Classification: Inner Main-belt Asteroid          SPK-ID: 2052314
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1011437916132177 1.8779e-08  
a 1.937339081014053 5.0742e-09 au
q 1.741389260719825 3.6957e-08 au
i 22.70263216286519 7.769e-07 deg
node 65.32306324779113 1.6608e-06 deg
peri 11.80259290083988 1.1019e-05 deg
M 278.9302378142076 9.4513e-06 deg
tp 2459422.300889858983
(2021-Jul-26.80088986)
2.6055e-05 TDB
period 984.9334473960927
2.70
3.8695e-06
1.059e-08
d
yr
n .3655069293785749 1.436e-09 deg/d
Q 2.133288901308281 5.5874e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1605  
   data-arc span      15147 days (41.47 yr)  
   first obs. used      1979-06-24  
   last obs. used      2020-12-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42138  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:44:27  

Additional Information
 Earth MOID = .757402 au 
 Jupiter MOID = 3.17299 au 
 T_jup = 3.806 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.26   n/a E2021B10  
rotation period rot_per 7.683 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2008) Minor Planet Bull. 35, 67-71.]
[Warner, Brian D. (2014) Minor Planet Bull. 41, 235-241.]

52314 (1991 XD)          Discovered 1991-Dec-07 by Helin, E. F. at Palomar
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 XD = 1998 HQ7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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