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74150 (1998 QR89)
Classification: Main-belt Asteroid          SPK-ID: 2074150
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2776444474909757 3.5455e-08  
a 2.564691890135697 1.0627e-08 au
q 1.852619427314385 8.9247e-08 au
i 9.611765772807566 6.8596e-06 deg
node 306.565657603406 1.7184e-05 deg
peri 112.6237220253737 2.2022e-05 deg
M 63.93033803220715 1.2343e-05 deg
tp 2458734.086808842882
(2019-Sep-07.58680884)
5.1237e-05 TDB
period 1500.207128081275
4.11
9.3241e-06
2.553e-08
d
yr
n .239966864082582 1.4914e-09 deg/d
Q 3.276764352957008 1.3577e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1379  
   data-arc span      13622 days (37.30 yr)  
   first obs. used      1983-01-09  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47895  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:03:37  

Additional Information
 Earth MOID = .890086 au 
 Jupiter MOID = 2.15998 au 
 T_jup = 3.359 
[ 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 MPO453154  
diameter diameter 7.112 km 0.210 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.038   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74150 (1998 QR89)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QR89 = 1983 AH = 2000 EN157 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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