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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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456964.5 (2014-Nov-03.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2291859945241823 4.7548e-08  
q 2.125664086928035 1.3386e-07 au
tp 2457795.666818001905
(2017-Feb-11.16681800)
5.8385e-05 TDB
node 352.7775108897952 0.00018484 deg
peri 59.09110105942658 0.00018534 deg
i 1.392244732480268 6.3544e-06 deg
  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
 Jupiter MOID = 1.99852 au 
 T_jup = 3.302 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.260855888948331E-15 -6.337941046218594E-15 -1.319242182401083E-12 2.568751543550021E-14 -3.181336531789609E-13 -1.536790480173462E-16
q -6.337941046218594E-15 1.791821689793337E-14 3.957837863133762E-12 -7.450585590125122E-14 9.31717276502839E-13 5.859027999951328E-16
tp -1.319242182401083E-12 3.957837863133762E-12 3.408864219272024E-9 -4.161121304700679E-11 8.063487383444266E-10 2.575661657344178E-13
node 2.568751543550021E-14 -7.450585590125122E-14 -4.161121304700679E-11 3.416516243535187E-8 -3.416361921135974E-8 3.234936277296242E-10
peri -3.181336531789609E-13 9.31717276502839E-13 8.063487383444266E-10 -3.416361921135974E-8 3.435031668775483E-8 -3.233550859563535E-10
i -1.536790480173462E-16 5.859027999951328E-16 2.575661657344178E-13 3.234936277296242E-10 -3.233550859563535E-10 4.037815328200244E-11

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. 2020-October); 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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