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137805 (1999 YK5)
Classification: Aten [NEO]          SPK-ID: 2137805
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 243 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .558315681031332 5.7896e-08  
a .829370538512895 1.2221e-09 au
q .3663199614757455 4.821e-08 au
i 16.74676039803997 5.8038e-06 deg
node 349.5508895904397 2.748e-05 deg
peri 292.8536225841218 2.3972e-05 deg
M 63.73272456282895 1.5115e-05 deg
tp 2459151.659363291074
(2020-Oct-29.15936329)
1.1529e-05 TDB
period 275.8807086284231
0.76
6.0978e-07
1.669e-09
d
yr
n 1.304911828702293 2.8842e-09 deg/d
Q 1.292421115550045 1.9044e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1254  
   data-arc span      7726 days (21.15 yr)  
   first obs. used      1999-12-28  
   last obs. used      2021-02-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44498  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-04 05:55:54  

Additional Information
 Earth MOID = .114266 au 
 Jupiter MOID = 3.93578 au 
 T_jup = 6.908 
[ 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 16.7   n/a MPO502859  
diameter diameter 2.243 km 0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 3.930 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2016) Minor Planet Bull. 43, 240-250.]
geometric albedo albedo 0.027   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  
SMASSII spectral type spec_B X   n/a Binzel et al. (2001) Icarus 151, 139-149  

137805 (1999 YK5)          Discovered 1999-Dec-28 by LINEAR at Socorro
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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