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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 254 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5583155793819088 2.7636e-08  
a .8293705394081411 1.1358e-09 au
q .3663200461761986 2.2977e-08 au
i 16.74676121712932 8.9313e-07 deg
node 349.55087036013 6.9113e-06 deg
peri 292.8536388570908 6.9592e-06 deg
M 63.73271222999126 9.4799e-06 deg
tp 2459151.659372663083
(2020-Oct-29.15937266)
7.1925e-06 TDB
period 275.8807090751133
0.76
5.667e-07
1.552e-09
d
yr
n 1.304911826589455 2.6805e-09 deg/d
Q 1.292421032640084 1.7699e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1299  
   data-arc span      7813 days (21.39 yr)  
   first obs. used      1999-12-28  
   last obs. used      2021-05-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44559  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-20 06:22:04  

Additional Information
 Earth MOID = .114266 au 
 Jupiter MOID = 3.93578 au 
 T_jup = 6.908 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456875.5 (2014-Aug-06.0) TDB
Reference: JPL 254 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5583864333861942 2.7621e-08  
q .3662150278958213 2.2971e-08 au
tp 2456944.795616701201
(2014-Oct-14.29561670)
4.8977e-06 TDB
node 349.5917064867654 6.9115e-06 deg
peri 292.8315259626717 6.9629e-06 deg
i 16.74162111602936 8.9367e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      1299  
   data-arc span      7813 days (21.39 yr)  
   first obs. used      1999-12-28  
   last obs. used      2021-05-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44559  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-20 06:22:04  

Additional Information
 Jupiter MOID = 3.93578 au 
 T_jup = 6.908 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.629081491039115E-16 -6.343050620273652E-16 -1.850034324271279E-14 4.385026388121942E-15 -3.126419967019119E-14 -4.39485142231074E-15
q -6.343050620273652E-16 5.276497746475452E-16 1.571351487583665E-14 -3.358621996478642E-15 2.585562991476918E-14 3.671572220901769E-15
tp -1.850034324271279E-14 1.571351487583665E-14 2.398741919649811E-11 8.738072405591732E-12 2.672382301202796E-12 6.058828096153531E-13
node 4.385026388121942E-15 -3.358621996478642E-15 8.738072405591732E-12 4.776885752631426E-11 -4.425382063710229E-11 2.069057079118187E-12
peri -3.126419967019119E-14 2.585562991476918E-14 2.672382301202796E-12 -4.425382063710229E-11 4.848202506531732E-11 -1.984864827666132E-12
i -4.39485142231074E-15 3.671572220901769E-15 6.058828096153531E-13 2.069057079118187E-12 -1.984864827666132E-12 7.986407116839821E-13

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 16.68   n/a MPCxxxxx  
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

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