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48835 (1997 YK18)
Classification: Main-belt Asteroid          SPK-ID: 2048835
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08778747847896749 5.7142e-08  
a 2.995635510064776 3.5044e-08 AU
q 2.732656222194133 1.5807e-07 AU
i 10.71240408602107 7.0027e-06 deg
node 146.3594509461446 3.0705e-05 deg
peri 287.2565199057844 5.4581e-05 deg
M 124.7571461249781 4.7958e-05 deg
tp 2456344.211472178411
(2013-Feb-20.71147218)
0.00024817 JED
period 1893.790274579458
5.18
3.3231e-05
9.098e-08
d
yr
n .1900949671314279 3.3357e-09 deg/d
Q 3.258614797935418 3.812e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      852  
   data-arc span      6401 days (17.52 yr)  
   first obs. used      1997-12-22  
   last obs. used      2015-07-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54229  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 15:52:16  

Additional Information
 Earth MOID = 1.77144 AU 
 T_jup = 3.222 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.7 mag n/a MPO299292  
rotation period rot_per 32.0 h n/a LCDB (Rev. 2015-July); Warner et al., 2009 Incomplete or inconclusive result.
Published Reference List:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) arXiv:1506.08493.]

48835 (1997 YK18)          Discovered 1997-Dec-22 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 YK18 = 1999 GJ44 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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