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52786 (1998 QP42)
Classification: Main-belt Asteroid          SPK-ID: 2052786
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1897834852117225 4.8065e-08  
a 2.335295567853961 9.8701e-09 au
q 1.892095035987147 1.1068e-07 au
i 3.437906255456122 5.3503e-06 deg
node 304.6893748234357 9.4558e-05 deg
peri .4708147662086439 9.6032e-05 deg
M 58.92261151456761 1.8967e-05 deg
tp 2458787.150958670136
(2019-Oct-30.65095867)
6.7905e-05 TDB
period 1303.500522202112
3.57
8.2638e-06
2.263e-08
d
yr
n .2761794060441357 1.7509e-09 deg/d
Q 2.778496099720773 1.1743e-08 au
  Orbit Determination Parameters
   # obs. used (total)      569  
   data-arc span      10073 days (27.58 yr)  
   first obs. used      1991-10-07  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60116  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:47:51  

Additional Information
 Earth MOID = .876994 au 
 Jupiter MOID = 2.46211 au 
 T_jup = 3.541 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO436153  
rotation period rot_per 144. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Szabo, R.; Pal, A.; Sarneczky, K.; Szabo, Gy.M.; et al. (2016) Astron. Astrophys. 596, A40.]

52786 (1998 QP42)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QP42 = 1991 TR2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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