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91256 (1999 CX80)
Classification: Main-belt Asteroid          SPK-ID: 2091256
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09492481075429557 3.3879e-08  
a 2.225776804156496 6.3801e-09 au
q 2.014495362240639 7.4186e-08 au
i 4.670833269512473 2.6572e-06 deg
node 251.447731550205 4.4761e-05 deg
peri 263.7492377468155 4.7102e-05 deg
M 262.3952123930263 1.5727e-05 deg
tp 2459725.343653794480
(2022-May-25.84365379)
5.3444e-05 TDB
period 1212.888407100581
3.32
5.2151e-06
1.428e-08
d
yr
n .2968121369554373 1.2762e-09 deg/d
Q 2.437058246072352 6.9858e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2220  
   data-arc span      8257 days (22.61 yr)  
   first obs. used      1998-12-23  
   last obs. used      2021-08-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48085  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:17:20  

Additional Information
 Earth MOID = 1.03138 au 
 Jupiter MOID = 2.56551 au 
 T_jup = 3.636 
[ 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 14.64   n/a E2021B10  
diameter diameter 3.115 km 0.487 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 1.43726 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 0.380   0.102 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91256 (1999 CX80)          Discovered 1999-Feb-12 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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