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74135 (1998 QL72)
Classification: Main-belt Asteroid          SPK-ID: 2074135
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1563648117561059 6.5184e-08  
a 2.543592815833581 1.2259e-08 au
q 2.14586440400158 1.6918e-07 au
i 10.70923630683079 6.1972e-06 deg
node 281.1708586696308 2.0721e-05 deg
peri 12.05442088155465 2.4401e-05 deg
M 167.1325119663811 1.2547e-05 deg
tp 2458312.595340384462
(2018-Jul-13.09534038)
4.976e-05 TDB
period 1481.732516001481
4.06
1.0712e-05
2.933e-08
d
yr
n .2429588310388676 1.7564e-09 deg/d
Q 2.941321227665582 1.4175e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1045  
   data-arc span      7862 days (21.52 yr)  
   first obs. used      1998-07-24  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53471  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:11:30  

Additional Information
 Earth MOID = 1.1308 au 
 Jupiter MOID = 2.2446 au 
 T_jup = 3.403 
[ 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 14.8   n/a MPO453154  
diameter diameter 3.088 km 0.210 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.294   0.131 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74135 (1998 QL72)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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