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78381 (2002 PQ135)
Classification: Main-belt Asteroid          SPK-ID: 2078381
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2250978433868776 4.7331e-08  
a 2.764418668004043 1.6525e-08 au
q 2.142153987617908 1.3296e-07 au
i 1.389317616144357 6.3399e-06 deg
node 352.4049041308702 0.00018509 deg
peri 59.54143476692927 0.00018563 deg
M 258.664412307933 1.4137e-05 deg
tp 2459473.067273400677
(2021-Sep-15.56727340)
6.8345e-05 TDB
period 1678.820070015364
4.60
1.5053e-05
4.121e-08
d
yr
n .2144363213365119 1.9227e-09 deg/d
Q 3.386683348390177 2.0244e-08 au
  Orbit Determination Parameters
   # obs. used (total)      615  
   data-arc span      10690 days (29.27 yr)  
   first obs. used      1991-04-13  
   last obs. used      2020-07-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58011  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:27:05  

Additional Information
 Earth MOID = 1.15349 au 
 Jupiter MOID = 1.99852 au 
 T_jup = 3.302 
[ 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 15.4   n/a MPO395708  
rotation period rot_per 17.9 h n/a LCDB (Rev. 2019-August); 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:
[Chang, C.-K.; Ip, W.-H.; Cheng, Y.-C.; Ngeow, C.-C.; et al. (2014) Astrophys. J. 788, A17.]

78381 (2002 PQ135)          Discovered 2002-Aug-14 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2002 PQ135 = 1993 RR10 = 1998 XC67 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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