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JPL Small-Body Database Browser
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52818 (1998 QH103)
Classification: Main-belt Asteroid          SPK-ID: 2052818
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2173413490312494 4.481e-08  
a 2.538155036389615 9.0062e-09 au
q 1.986508996730236 1.1439e-07 au
i 9.32722919101845 3.863e-06 deg
node 15.78007587601348 2.7257e-05 deg
peri 320.467241844466 2.8099e-05 deg
M 145.7339108761617 8.9855e-06 deg
tp 2458402.592824826391
(2018-Oct-11.09282483)
3.5333e-05 TDB
period 1476.983508974836
4.04
7.8612e-06
2.152e-08
d
yr
n .2437400267589132 1.2973e-09 deg/d
Q 3.089801076048993 1.0964e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1538  
   data-arc span      9255 days (25.34 yr)  
   first obs. used      1994-10-01  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4787  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 10:36:12  

Additional Information
 Earth MOID = .988003 au 
 Jupiter MOID = 2.33885 au 
 T_jup = 3.395 
[ 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 15.0   n/a MPO359098  
diameter diameter 2.665 km 0.088 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.172   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52818 (1998 QH103)          Discovered 1998-Aug-26 by Elst, E. W. at La Silla
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QH103 = 1997 ET47 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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