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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1897313456697156 3.3666e-08  
a 2.335721418639131 7.729e-09 au
q 1.892561850771152 7.969e-08 au
i 3.437898399934232 4.0374e-06 deg
node 304.68979065116 7.2073e-05 deg
peri .5254908126610778 7.3043e-05 deg
M 114.0984363086405 1.2906e-05 deg
tp 2458787.255403499148
(2019-Oct-30.75540350)
4.5953e-05 TDB
period 1303.857086506284
3.57
6.4718e-06
1.772e-08
d
yr
n .2761038795782661 1.3705e-09 deg/d
Q 2.778880986507111 9.1954e-09 au
  Orbit Determination Parameters
   # obs. used (total)      679  
   data-arc span      10720 days (29.35 yr)  
   first obs. used      1991-10-07  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57276  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:48:06  

Additional Information
 Earth MOID = .875473 au 
 Jupiter MOID = 2.46145 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 16.00   n/a MPCxxxxx  
rotation period rot_per 144. h n/a LCDB (Rev. 2020-October); 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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