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24276 (1999 XO169)
Classification: Main-belt Asteroid          SPK-ID: 2024276
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2722637035216479 3.7643e-08  
a 2.672171409933897 1.1281e-08 au
q 1.94463612542063 1.0382e-07 au
i 9.566649990949578 3.7085e-06 deg
node 294.0441356361428 2.5493e-05 deg
peri 51.07188519962109 2.6332e-05 deg
M 3.822438070376312 6.3316e-06 deg
tp 2459183.559241413579
(2020-Nov-30.05924141)
2.8036e-05 TDB
period 1595.492975641867
4.37
1.0103e-05
2.766e-08
d
yr
n .2256355906895622 1.4288e-09 deg/d
Q 3.399706694447163 1.4352e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1880  
   data-arc span      17746 days (48.59 yr)  
   first obs. used      1972-07-13  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4205  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:38:54  

Additional Information
 Earth MOID = .9509 au 
 Jupiter MOID = 2.0876 au 
 T_jup = 3.307 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.54   n/a MPCxxxxx  
diameter diameter 11.087 km 0.187 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 21.1071 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 0.063   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

24276 (1999 XO169)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20010408/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1999 XO169 = 1972 NS = 1990 XG1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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