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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3404494949064872 2.6207e-08  
a 2.294603882374646 7.0522e-09 au
q 1.513407149609733 6.0343e-08 au
i 20.51547721740343 4.5603e-06 deg
node 157.7534011278306 9.6047e-06 deg
peri 288.0389323362933 1.271e-05 deg
M 235.4952275871388 1.0636e-05 deg
tp 2459639.579853825545
(2022-Mar-01.07985383)
3.8969e-05 TDB
period 1269.57982665143
3.48
5.8528e-06
1.602e-08
d
yr
n .2835583808459805 1.3072e-09 deg/d
Q 3.075800615139559 9.4531e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1261  
   data-arc span      15979 days (43.75 yr)  
   first obs. used      1976-11-18  
   last obs. used      2020-08-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48439  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:53:17  

Additional Information
 Earth MOID = .650281 au 
 Jupiter MOID = 2.43713 au 
 T_jup = 3.437 
[ 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 14.56   n/a E2021B10  
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. 2020-October); 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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