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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1563617778970339 6.7939e-08  
a 2.542985846103658 1.2479e-08 au
q 2.145360058039897 1.7661e-07 au
i 10.70889313295385 6.3791e-06 deg
node 281.1726599564429 2.1634e-05 deg
peri 11.94191612385686 2.5445e-05 deg
M 70.06551338447343 1.2476e-05 deg
tp 2458312.218914252784
(2018-Jul-12.71891425)
5.0725e-05 TDB
period 1481.202175733942
4.06
1.0902e-05
2.985e-08
d
yr
n .2430458217640805 1.789e-09 deg/d
Q 2.940611634167419 1.443e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1009  
   data-arc span      7803 days (21.36 yr)  
   first obs. used      1998-07-24  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54588  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:24:43  

Additional Information
 Earth MOID = 1.1296 au 
 Jupiter MOID = 2.24338 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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