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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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1431312852506332 5.3568e-08  
a 2.616628249324008 1.9606e-08 AU
q 2.242106884975148 1.3821e-07 AU
i 13.62194121029637 6.3328e-06 deg
node 138.820499861259 2.5044e-05 deg
peri 97.14406205153438 3.3279e-05 deg
M 312.5965960873411 2.3074e-05 deg
tp 2457204.072210779078
(2015-Jun-30.57221078)
9.9837e-05 JED
period 1546.007033914656
4.23
1.7376e-05
4.757e-08
d
yr
n .2328579314988246 2.6172e-09 deg/d
Q 2.991149613672867 2.2413e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1223  
   data-arc span      23075 days (63.18 yr)  
   first obs. used      1951-02-10  
   last obs. used      2014-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50887  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 17:52:09  

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 Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) 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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