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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1896384620935223 3.3673e-08  
a 2.336047821658677 7.747e-09 au
q 1.893043305382403 7.9728e-08 au
i 3.437719590185643 4.0374e-06 deg
node 304.691097919016 7.2071e-05 deg
peri .5656881438724177 7.3043e-05 deg
M 168.1586362403435 1.3021e-05 deg
tp 2458787.331137665819
(2019-Oct-30.83113767)
4.5982e-05 TDB
period 1304.130405332651
3.57
6.4873e-06
1.776e-08
d
yr
n .2760460139016335 1.3732e-09 deg/d
Q 2.779052337934952 9.2161e-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 = .87742 au 
 Jupiter MOID = 2.46052 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2135-Oct-25 19:50 00:06 Europ 0.0272355715766704 0.0272225362341803 0.0272486119353745 4.18093133567921 4.18093124234042 2501150.326323626 6.25286822744352 873.240319352245 36.1968295845538 41.9647546304746 75297.61602107 T 20 CATAB v2.0f-lin.ifort 2021-Apr-13 10:48:08 2021-Apr-13 10:48

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