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74143 (1998 QP77)
Classification: Main-belt Asteroid          SPK-ID: 2074143
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06903196870331239 4.4341e-08  
a 2.648678667707681 1.5494e-08 au
q 2.465835164813353 1.1906e-07 au
i 21.65757930000547 6.5923e-06 deg
node 328.286937366686 1.1963e-05 deg
peri 85.94525855427896 5.7876e-05 deg
M 323.8795261561265 5.3749e-05 deg
tp 2459158.476786632721
(2020-Nov-04.97678663)
0.00023508 TDB
period 1574.498812878279
4.31
1.3816e-05
3.783e-08
d
yr
n .2286441863629597 2.0063e-09 deg/d
Q 2.831522170602009 1.6564e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1165  
   data-arc span      8113 days (22.21 yr)  
   first obs. used      1998-08-24  
   last obs. used      2020-11-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48109  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:08:50  

Additional Information
 Earth MOID = 1.56074 au 
 Jupiter MOID = 2.39448 au 
 T_jup = 3.288 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456984.5 (2014-Nov-23.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0697185987566178 4.3785e-08  
q 2.464791564996394 1.175e-07 au
tp 2457577.799452668828
(2016-Jul-08.29945267)
0.00023331 TDB
node 328.4098390925271 1.1965e-05 deg
peri 84.62853876436758 5.7444e-05 deg
i 21.65579937791766 6.5912e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1165  
   data-arc span      8113 days (22.21 yr)  
   first obs. used      1998-08-24  
   last obs. used      2020-11-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48109  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:08:50  

Additional Information
 Jupiter MOID = 2.39448 au 
 T_jup = 3.288 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.917137967991653E-15 -5.105923262395494E-15 2.718962922486283E-12 -1.509265468277457E-15 7.26989216107088E-13 -8.8649251362922E-15
q -5.105923262395494E-15 1.380667681391913E-14 -7.288470167912076E-12 4.55191202193674E-15 -1.966433002765186E-12 2.465602619167886E-14
tp 2.718962922486283E-12 -7.288470167912076E-12 5.443565964758007E-8 -1.314892914190047E-11 1.311365716103302E-8 -1.086630898291829E-11
node -1.509265468277457E-15 4.55191202193674E-15 -1.314892914190047E-11 1.431675351344593E-10 -1.35510121885893E-10 -6.392683076906964E-12
peri 7.26989216107088E-13 -1.966433002765186E-12 1.311365716103302E-8 -1.35510121885893E-10 3.299837056334648E-9 3.000106975932763E-12
i -8.8649251362922E-15 2.465602619167886E-14 -1.086630898291829E-11 -6.392683076906964E-12 3.000106975932763E-12 4.344335796487279E-11

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 14.0   n/a MPO493387  
diameter diameter 4.658 km 0.782 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.296   0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74143 (1998 QP77)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QP77 = 2002 OG12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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