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JPL Small-Body Database Browser
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773 Irmintraud (A913 YF)
Classification: Main-belt Asteroid          SPK-ID: 2000773
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 73 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07872360040085725 3.4522e-08  
a 2.859012263122195 1.0413e-08 au
q 2.633940524179013 9.8697e-08 au
i 16.66622732332666 4.2131e-06 deg
node 322.3025965037955 1.4303e-05 deg
peri 332.5512228744488 3.2641e-05 deg
M 145.0971028040691 3.0043e-05 deg
tp 2458288.829941985301
(2018-Jun-19.32994199)
0.00014662 TDB
period 1765.722512263054
4.83
9.647e-06
2.641e-08
d
yr
n .2038825452469328 1.1139e-09 deg/d
Q 3.084084002065377 1.1233e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2868  
   data-arc span      38760 days (106.12 yr)  
   first obs. used      1913-12-22  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38055  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:36:48  

Additional Information
 Earth MOID = 1.62798 au 
 Jupiter MOID = 2.22545 au 
 T_jup = 3.236 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.1   n/a MPO394996  
diameter diameter 91.672 km 0.900 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 6.7514 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Holliday, B. (2001) Minor Planet Bull. 28, 43-44.]
[Kanno, A.; Hiroi, T.; Nakamura, R.; Abe, M.; et al. (2003) Geophys Research Letters 30, PLA 2-1.]
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D. (2006) Minor Planet Bull. 33, 58-62.]
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.048   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.706   0.015 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=8.69, mean=10.31, max.=11.93) deg.
U-B UB 0.284   0.049 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=8.69, mean=10.31, max.=11.93) deg.
Tholen spectral type spec_T D   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B T   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)

773 Irmintraud (A913 YF)          Discovered 1913-Dec-22 by Kaiser, F. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A913 YF = 1946 SO = A910 CG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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