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43168 (1999 XO161)
Classification: Main-belt Asteroid          SPK-ID: 2043168
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1557512161686814 3.4944e-08  
a 2.694045390342961 1.2163e-08 au
q 2.274444544383415 9.6237e-08 au
i 11.63613995925949 3.6842e-06 deg
node 264.6244703253684 2.0651e-05 deg
peri 32.34938036419314 2.5153e-05 deg
M 33.75562264451056 1.2604e-05 deg
tp 2459049.056927433651
(2020-Jul-18.55692743)
5.6688e-05 TDB
period 1615.123699480975
4.42
1.0938e-05
2.995e-08
d
yr
n .2228931444171658 1.5095e-09 deg/d
Q 3.113646236302507 1.4058e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1338  
   data-arc span      8240 days (22.56 yr)  
   first obs. used      1998-06-25  
   last obs. used      2021-01-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47514  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:16:52  

Additional Information
 Earth MOID = 1.26528 au 
 Jupiter MOID = 2.08419 au 
 T_jup = 3.324 
[ 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 14.14   n/a E2021B10  
diameter diameter 4.136 km 0.984 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.02778 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 0.312   0.132 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43168 (1999 XO161)          Discovered 1999-Dec-13 by LINEAR at Socorro
Reference: 20020624/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XO161 = 1998 QP64 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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