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338 Budrosa (A892 SF)
Classification: Main-belt Asteroid          SPK-ID: 2000338
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 81 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02072683329758458 2.4235e-08  
a 2.915941583166981 8.4286e-09 au
q 2.855503348067184 7.3895e-08 au
i 6.04798243927587 1.9854e-07 deg
node 287.4205476400351 6.7208e-06 deg
peri 107.4447631309788 4.7923e-05 deg
M 262.8521825800096 4.9119e-05 deg
tp 2459691.291692469859
(2022-Apr-21.79169247)
0.00024882 TDB
period 1818.723405028266
4.98
7.8856e-06
2.159e-08
d
yr
n .1979410387553708 8.5823e-10 deg/d
Q 2.976379818266778 8.6033e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2716  
   data-arc span      46771 days (128.05 yr)  
   first obs. used      1892-09-27  
   last obs. used      2020-10-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4466  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 10:43:47  

Additional Information
 Earth MOID = 1.8675 au 
 Jupiter MOID = 2.14342 au 
 T_jup = 3.273 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455627.5 (2011-Mar-07.0) TDB
Reference: JPL 81 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02144624980429581 2.3653e-08  
q 2.848436604058003 7.168e-08 au
tp 2456131.308208763807
(2012-Jul-22.80820876)
0.00025436 TDB
node 287.6037098594478 6.7479e-06 deg
peri 121.8138922654104 4.9706e-05 deg
i 6.038603017948208 1.9866e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2716  
   data-arc span      46771 days (128.05 yr)  
   first obs. used      1892-09-27  
   last obs. used      2020-10-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4466  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 10:43:47  

Additional Information
 Jupiter MOID = 2.14342 au 
 T_jup = 3.273 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.59478080815081E-16 -1.685365788573898E-15 -1.896682416237293E-12 2.543331778164424E-15 -3.541690403831966E-13 -1.051725049487871E-15
q -1.685365788573898E-15 5.137975728654652E-15 6.123986977329139E-12 -1.172699286008938E-14 1.154955531583095E-12 3.22554409772047E-15
tp -1.896682416237293E-12 6.123986977329139E-12 6.469746825056515E-8 -8.082394023555987E-11 1.253532768374742E-8 7.74611022937316E-12
node 2.543331778164424E-15 -1.172699286008938E-14 -8.082394023555987E-11 4.553445391509219E-11 -5.834881925287731E-11 -7.251579354359044E-13
peri -3.541690403831966E-13 1.154955531583095E-12 1.253532768374742E-8 -5.834881925287731E-11 2.470672514405546E-9 2.145123305476292E-12
i -1.051725049487871E-15 3.22554409772047E-15 7.74611022937316E-12 -7.251579354359044E-13 2.145123305476292E-12 3.946446497694631E-14

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 8.58   n/a E2021B10  
diameter diameter 50.506 km 0.479 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 4.6084 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Gil Hutton, R.; Licandro, J. (1991) Minor Planet Bull. 18, 37-38.]
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hamanowa, H.; Hamanowa, H. (2011) http://www2.ocn.ne.jp/~hamaten/astlcdata.htm]
[Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Carbognani, A.; Cellino, A.; Caminiti, S. (2019) Planet. Space Sci. 169, 15-34.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.276   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.704   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=9; phase (min.=4.82, mean=7.50, max.=13.71) deg.
U-B UB 0.247   0.023 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=9; phase (min.=4.82, mean=7.50, max.=13.71) deg.
Tholen spectral type spec_T M   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B Xk   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)

338 Budrosa (A892 SF)          Discovered 1892-Sep-25 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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