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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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .189783456171521 3.6507e-08  
a 2.335295565349833 8.0589e-09 au
q 1.892095101775715 8.6917e-08 au
i 3.437905473251026 4.2917e-06 deg
node 304.6893271627031 7.7274e-05 deg
peri .4708719854317249 7.8315e-05 deg
M 58.92260683633081 1.3159e-05 deg
tp 2458787.150975952418
(2019-Oct-30.65097595)
4.7326e-05 TDB
period 1303.500520105505
3.57
6.7474e-06
1.847e-08
d
yr
n .2761794064883547 1.4296e-09 deg/d
Q 2.77849602892395 9.5884e-09 au
  Orbit Determination Parameters
   # obs. used (total)      629  
   data-arc span      10609 days (29.05 yr)  
   first obs. used      1991-10-07  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58462  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:16:13  

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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