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79141 (1991 TB)
Classification: Main-belt Asteroid          SPK-ID: 2079141
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1900002226082041 3.7552e-08  
a 2.318661421447987 8.2707e-09 au
q 1.878115235219814 8.5958e-08 au
i 7.875173388404558 4.0203e-06 deg
node 27.85072102091037 2.9932e-05 deg
peri 9.80791788719505 3.1893e-05 deg
M 115.4064982789287 1.1585e-05 deg
tp 2458983.088842093555
(2020-May-13.58884209)
4.0718e-05 TDB
period 1289.598238104532
3.53
6.9e-06
1.889e-08
d
yr
n .2791567089368334 1.4936e-09 deg/d
Q 2.759207607676159 9.8421e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1935  
   data-arc span      16442 days (45.02 yr)  
   first obs. used      1976-05-02  
   last obs. used      2021-05-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4338  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:07:51  

Additional Information
 Earth MOID = .885086 au 
 Jupiter MOID = 2.67553 au 
 T_jup = 3.543 
[ 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 14.94   n/a MPO637104  
diameter diameter 2.331 km 0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 74.5478 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 0.391   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

79141 (1991 TB)          Discovered 1991-Oct-01 by McNaught, R. H. at Siding Spring
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 1991 TB = 1976 JR9 = 2000 DY99 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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