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46722 Ireneadler (1997 RA1)
Classification: Main-belt Asteroid          SPK-ID: 2046722
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02937324032814179 4.3732e-08  
a 3.063818853168226 1.7072e-08 au
q 2.973824565672224 1.3069e-07 au
i 8.832474147239724 4.5464e-06 deg
node 354.9734242216398 2.3925e-05 deg
peri 28.84069965295462 8.0248e-05 deg
M 135.7226491127227 7.4642e-05 deg
tp 2458658.012956164576
(2019-Jun-23.51295616)
0.00040689 TDB
period 1958.813341168649
5.36
1.6372e-05
4.482e-08
d
yr
n .1837847396859265 1.5361e-09 deg/d
Q 3.153813140664227 1.7573e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1566  
   data-arc span      8681 days (23.77 yr)  
   first obs. used      1997-09-02  
   last obs. used      2021-06-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47228  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 07:48:23  

Additional Information
 Earth MOID = 1.97648 au 
 Jupiter MOID = 1.98122 au 
 T_jup = 3.214 
[ 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 13.85   n/a MPCxxxxx  
diameter diameter 5.889 km 0.395 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 113.71 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.185   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46722 Ireneadler           Discovered 1997 Sept 2 by P. Pravec and L. Šarounová at Ondřejov.
Irene Adler is the heroine of the Sherlock Holmes story A Scandal in Bohemia. She outwitted the great detective, who subsequently called her "The" woman and kept a picture of her over his fireplace. Her great intellect and charm made her the only woman to captivate Holmes.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090607/MPCPages.arcLast Updated: 2009-06-08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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