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702 Alauda (A910 OA)
Classification: Main-belt Asteroid          SPK-ID: 2000702
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 106 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01673698788745514 9.2709e-09  
a 3.194901130550961 9.0193e-09 au
q 3.141428109027313 3.174e-08 au
i 20.60028644289233 4.8626e-07 deg
node 289.744850787743 7.941e-07 deg
peri 353.0626698600667 7.1337e-05 deg
M 189.1564908401834 7.411e-05 deg
tp 2460386.375428505362
(2024-Mar-16.87542851)
0.00043146 TDB
period 2085.857145023729
5.71
8.8327e-06
2.418e-08
d
yr
n .1725909182509738 7.3085e-10 deg/d
Q 3.248374152074609 9.1703e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3563  
   data-arc span      40475 days (110.81 yr)  
   first obs. used      1910-07-17  
   last obs. used      2021-05-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39812  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 11:27:01  

Additional Information
 Earth MOID = 2.12504 au 
 Jupiter MOID = 1.94838 au 
 T_jup = 3.095 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457226.5 (2015-Jul-23.0) TDB
Reference: JPL 106 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01980133091844634 9.1499e-09  
q 3.128992488433012 3.1668e-08 au
tp 2456206.150264129869
(2012-Oct-05.65026413)
0.00036158 TDB
node 289.9336032400002 7.9705e-07 deg
peri 351.0673730926936 6.0846e-05 deg
i 20.61056977227572 4.8662e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3563  
   data-arc span      40475 days (110.81 yr)  
   first obs. used      1910-07-17  
   last obs. used      2021-05-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39812  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 11:27:01  

Additional Information
 Jupiter MOID = 1.94838 au 
 T_jup = 3.095 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.372005174514012E-17 -2.782585159820056E-16 4.474739333415405E-13 -1.907395718238588E-15 7.558679866123168E-14 2.494424851682923E-15
q -2.782585159820056E-16 1.002886037376346E-15 7.019675561437333E-14 5.928479320417814E-15 1.590366368776039E-14 -8.007126700223148E-15
tp 4.474739333415405E-13 7.019675561437333E-14 1.307392317132173E-7 3.307572780421893E-11 2.199845177909699E-8 -8.384034458141679E-12
node -1.907395718238588E-15 5.928479320417814E-15 3.307572780421893E-11 6.352858870142902E-13 5.20878558311865E-12 -6.952275093518544E-14
peri 7.558679866123168E-14 1.590366368776039E-14 2.199845177909699E-8 5.20878558311865E-12 3.702259554242936E-9 -1.370220266061771E-12
i 2.494424851682923E-15 -8.007126700223148E-15 -8.384034458141679E-12 -6.952275093518544E-14 -1.370220266061771E-12 2.367942854279994E-13

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 7.35   n/a E2021B10 IRAS observations used: 26
diameter diameter 190.980 km 1.973 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 16.7072 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2014) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2019) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.061   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.665   0.022 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=7; phase (min.=2.23, mean=6.88, max.=14.75) deg.
U-B UB 0.316   0.014 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=7; phase (min.=2.23, mean=6.88, max.=14.75) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices
SMASSII spectral type spec_B B   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

702 Alauda (A910 OA)          Discovered 1910-Jul-16 by Helffrich, J. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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