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249151 (2008 AW77)
Classification: Main-belt Asteroid          SPK-ID: 2249151
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .005417654456313594 5.9236e-08  
a 2.955313573047707 4.1438e-08 au
q 2.939302705298881 1.6932e-07 au
i 2.382821556080204 6.317e-06 deg
node 21.61133883991605 0.0001554 deg
peri 160.0666956865606 0.00073279 deg
M 99.03575365069536 0.00071113 deg
tp 2458490.002887947998
(2019-Jan-06.50288795)
0.0036703 TDB
period 1855.682958569885
5.08
3.9029e-05
1.069e-07
d
yr
n .1939986560405988 4.0802e-09 deg/d
Q 2.971324440796533 4.1662e-08 au
  Orbit Determination Parameters
   # obs. used (total)      188  
   data-arc span      6406 days (17.54 yr)  
   first obs. used      2001-10-17  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58502  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:20:03  

Additional Information
 Earth MOID = 1.93485 au 
 Jupiter MOID = 1.98456 au 
 T_jup = 3.267 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457312.5 (2015-Oct-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .004804957995303021 6.2879e-08  
q 2.9378865916073 1.7259e-07 au
tp 2456498.988630659773
(2013-Jul-25.48863066)
0.0039484 TDB
node 21.71047776749722 0.00015514 deg
peri 132.9350953714071 0.00078411 deg
i 2.385837395166146 6.3229e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      188  
   data-arc span      6406 days (17.54 yr)  
   first obs. used      2001-10-17  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58502  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:20:03  

Additional Information
 Jupiter MOID = 1.98456 au 
 T_jup = 3.267 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.953758709340204E-15 -1.059877895752185E-14 -3.880882251142176E-11 -4.548339600070288E-15 -7.487748916588641E-12 -9.407692687854211E-16
q -1.059877895752185E-14 2.978716375509735E-14 6.800984162914693E-11 7.110986172190124E-15 1.316740643729408E-11 3.006005496659671E-15
tp -3.880882251142176E-11 6.800984162914693E-11 1.558993427527378E-5 4.580768828657319E-10 3.034799917452866E-6 8.6789459349648E-11
node -4.548339600070288E-15 7.110986172190124E-15 4.580768828657319E-10 2.406834926659829E-8 -2.395845841000639E-8 -3.078024414019372E-11
peri -7.487748916588641E-12 1.316740643729408E-11 3.034799917452866E-6 -2.395845841000639E-8 6.148237692166168E-7 4.772753344631622E-11
i -9.407692687854211E-16 3.006005496659671E-15 8.6789459349648E-11 -3.078024414019372E-11 4.772753344631622E-11 3.997892830863838E-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 16.4   n/a MPO433632  
diameter diameter 3.719 km 0.843 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.027   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249151 (2008 AW77)          Discovered 2008-Jan-12 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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