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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2185464561748694 4.4127e-08  
a 2.648923943846214 1.6474e-08 au
q 2.070011003241865 1.212e-07 au
i 10.7332537518486 4.9911e-06 deg
node 258.2095808369646 3.2717e-05 deg
peri 119.4359065445976 3.6289e-05 deg
M 270.0748719902504 1.6008e-05 deg
tp 2458993.851874641572
(2020-May-24.35187464)
7.193e-05 TDB
period 1574.717523400277
4.31
1.469e-05
4.022e-08
d
yr
n .2286124302615586 2.1327e-09 deg/d
Q 3.227836884450562 2.0074e-08 au
  Orbit Determination Parameters
   # obs. used (total)      527  
   data-arc span      10010 days (27.41 yr)  
   first obs. used      1990-12-18  
   last obs. used      2018-05-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51348  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 02:29:04  

Additional Information
 Earth MOID = 1.09662 au 
 Jupiter MOID = 2.33348 au 
 T_jup = 3.332 
[ 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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