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JPL Small-Body Database Browser
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58727 (1998 DA21)
Classification: Main-belt Asteroid          SPK-ID: 2058727
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2527806169789873 3.8645e-08  
a 2.382326457404918 9.5622e-09 au
q 1.780120505656738 9.428e-08 au
i 1.769518591025556 3.8254e-06 deg
node 130.4657731939783 0.00017053 deg
peri 315.1232976510743 0.00017077 deg
M 315.375148213732 1.0411e-05 deg
tp 2458766.984813390571
(2019-Oct-10.48481339)
3.9334e-05 TDB
period 1343.075224264355
3.68
8.0863e-06
2.214e-08
d
yr
n .2680415761501247 1.6138e-09 deg/d
Q 2.984532409153099 1.1979e-08 au
  Orbit Determination Parameters
   # obs. used (total)      704  
   data-arc span      9979 days (27.32 yr)  
   first obs. used      1991-04-13  
   last obs. used      2018-08-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56354  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:36:02  

Additional Information
 Earth MOID = .796858 au 
 Jupiter MOID = 2.25231 au 
 T_jup = 3.493 
[ 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 16.1   n/a MPO412561  

58727 (1998 DA21)          Discovered 1998-Feb-22 by Spacewatch at Kitt Peak
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 DA21 = 2000 QH112 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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