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45130 (1999 XQ91)
Classification: Main-belt Asteroid          SPK-ID: 2045130
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2040270884681686 2.2867e-08  
a 2.482722307262875 7.097e-09 au
q 1.976179703437056 5.5021e-08 au
i 2.543058442548543 4.6094e-07 deg
node 138.9455281125516 7.3329e-06 deg
peri 197.2908140555727 8.5357e-06 deg
M 244.0014895620015 5.7118e-06 deg
tp 2459660.905558321591
(2022-Mar-22.40555832)
2.4193e-05 TDB
period 1428.86318427653
3.91
6.1267e-06
1.677e-08
d
yr
n .2519485448022633 1.0803e-09 deg/d
Q 2.989264911088693 8.545e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2548  
   data-arc span      10229 days (28.01 yr)  
   first obs. used      1993-03-20  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48547  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 05:32:19  

Additional Information
 Earth MOID = .964878 au 
 Jupiter MOID = 2.39266 au 
 T_jup = 3.447 
[ 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 14.01   n/a E2021B10  
diameter diameter 4.888 km 0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.324 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.223   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

45130 (1999 XQ91)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XQ91 = 1998 QB10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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