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74148 (1998 QP87)
Classification: Main-belt Asteroid          SPK-ID: 2074148
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2181671767287062 4.3779e-08  
a 2.64671003158244 1.6088e-08 au
q 2.069284776372554 1.2014e-07 au
i 10.73308314426514 4.9902e-06 deg
node 258.2064537659419 3.2527e-05 deg
peri 119.6254306041977 3.6133e-05 deg
M 1.390203255311126 1.6513e-05 deg
tp 2458994.426573607303
(2020-May-24.92657361)
7.2113e-05 TDB
period 1572.74376463875
4.31
1.434e-05
3.926e-08
d
yr
n .2288993338229446 2.0871e-09 deg/d
Q 3.224135286792325 1.9598e-08 au
  Orbit Determination Parameters
   # obs. used (total)      540  
   data-arc span      10426 days (28.54 yr)  
   first obs. used      1990-12-18  
   last obs. used      2019-07-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50779  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:11:45  

Additional Information
 Earth MOID = 1.09656 au 
 Jupiter MOID = 2.33824 au 
 T_jup = 3.334 
[ 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 15.2   n/a MPO439560  
diameter diameter 5.163 km 0.440 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.060   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74148 (1998 QP87)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 QP87 = 2002 NQ34 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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