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3492 Petra-Pepi (1985 DQ)
Classification: Main-belt Asteroid          SPK-ID: 2003492
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1431312890039498 5.3097e-08  
a 2.616628252148475 1.8869e-08 AU
q 2.242106877574312 1.375e-07 AU
i 13.62194156053337 6.244e-06 deg
node 138.8204986169604 2.4804e-05 deg
peri 97.14406512773014 3.2913e-05 deg
M 312.5965929618595 2.2309e-05 deg
tp 2457204.072224530959
(2015-Jun-30.57222453)
9.6414e-05 JED
period 1546.007036417866
4.23
1.6723e-05
4.579e-08
d
yr
n .2328579311217938 2.5188e-09 deg/d
Q 2.991149626722638 2.157e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1246  
   data-arc span      23365 days (63.97 yr)  
   first obs. used      1951-02-10  
   last obs. used      2015-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50585  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:06:26  

Additional Information
 Earth MOID = 1.28067 AU 
 T_jup = 3.353 
[ 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 11.7 mag n/a MPO267721  
rotation period rot_per 47.05 h n/a LCDB (Rev. 2015-Feb); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2011) Minor Planet Bul. 38, 211-212.]
[Hanus, J.; Broz, M.; Durech, J.; Warner, B.D.; et al. (2013) Astron. Astrophys. 559, A134.]

3492 Petra-Pepi (1985 DQ)          Discovered 1985-Feb-16 by Mahrova, M. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1985 DQ = 1951 CG = 1977 JD1 = 1978 SA1 = 1978 TK9 = 1980 CB 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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