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123919 (2001 DQ98)
Classification: Main-belt Asteroid          SPK-ID: 2123919
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05703768618959172 4.8629e-08  
a 2.987539546475538 2.9388e-08 au
q 2.817137203344671 1.4771e-07 au
i 9.072187373520752 4.3536e-06 deg
node 278.4080406368761 4.0508e-05 deg
peri 219.3356922977212 6.7465e-05 deg
M 276.497491139939 5.6139e-05 deg
tp 2459437.987797924389
(2021-Aug-11.48779792)
0.00029717 TDB
period 1886.118266419056
5.16
2.783e-05
7.619e-08
d
yr
n .1908682007960659 2.8163e-09 deg/d
Q 3.157941889606405 3.1064e-08 au
  Orbit Determination Parameters
   # obs. used (total)      645  
   data-arc span      7304 days (20.00 yr)  
   first obs. used      1999-12-07  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53653  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 10:13:43  

Additional Information
 Earth MOID = 1.83821 au 
 Jupiter MOID = 1.94527 au 
 T_jup = 3.236 
[ 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 14.7   n/a MPO310026  
diameter diameter 4.309 km 1.493 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.165   0.094 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

123919 (2001 DQ98)          Discovered 2001-Feb-17 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 2001 DQ98 = 1999 XK125 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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