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JPL Small-Body Database Browser
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19388 (1998 DQ3)
Classification: Mars-crossing Asteroid          SPK-ID: 2019388
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3411585196220075 2.6753e-08  
a 2.293608782592184 7.1413e-09 au
q 1.511124605731 6.1757e-08 au
i 20.50308452894948 5.3526e-06 deg
node 157.8073744183303 1.0008e-05 deg
peri 287.9765012560159 1.3781e-05 deg
M 178.8231755989733 1.1097e-05 deg
tp 2458370.270477475632
(2018-Sep-08.77047748)
3.7196e-05 TDB
period 1268.754049070109
3.47
5.9255e-06
1.622e-08
d
yr
n .2837429368314922 1.3252e-09 deg/d
Q 3.076092959453369 9.5776e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1153  
   data-arc span      15513 days (42.47 yr)  
   first obs. used      1976-11-18  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49418  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:42:53  

Additional Information
 Earth MOID = .648339 au 
 Jupiter MOID = 2.43769 au 
 T_jup = 3.438 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5   n/a MPO365484  
diameter diameter 3.623 km 0.582 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
rotation period rot_per 8.92431 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.192   0.079 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

19388 (1998 DQ3)          Discovered 1998-Feb-22 by JPL/GEODSS NEAT at Haleakala
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 DQ3 = 1993 QR 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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