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13169 (1995 XS1)
Classification: Main-belt Asteroid          SPK-ID: 2013169
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2092276713925847 3.3114e-08  
a 2.406647757573623 7.2969e-09 au
q 1.903110451394308 8.0796e-08 au
i 1.424967019635505 3.6019e-06 deg
node 233.3977550044169 0.00015331 deg
peri 173.2990684012876 0.00015359 deg
M 287.665383630398 9.9801e-06 deg
tp 2459474.506524732516
(2021-Sep-17.00652473)
3.8462e-05 TDB
period 1363.694920281065
3.73
6.202e-06
1.698e-08
d
yr
n .2639886639203746 1.2006e-09 deg/d
Q 2.910185063752938 8.8236e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1675  
   data-arc span      16006 days (43.82 yr)  
   first obs. used      1976-09-24  
   last obs. used      2020-07-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4951  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 23:48:08  

Additional Information
 Earth MOID = .911916 au 
 Jupiter MOID = 2.4821 au 
 T_jup = 3.492 
[ 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 14.53   n/a E2021B10  
rotation period rot_per 3.68 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:
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

13169 (1995 XS1)          Discovered 1995-Dec-15 by Kobayashi, T. at Oizumi
Reference: 20000124/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1995 XS1 = 1976 SS4 = 1987 RG4 = 1993 FM23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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