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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 252 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .558315579420447 2.7637e-08  
a .8293705393969225 1.1358e-09 au
q .3663200461392811 2.2978e-08 au
i 16.74676121826242 8.9316e-07 deg
node 349.5508703774995 6.9119e-06 deg
peri 292.853638837976 6.9598e-06 deg
M 63.73271222182377 9.4802e-06 deg
tp 2459151.659372670333
(2020-Oct-29.15937267)
7.1927e-06 TDB
period 275.8807090695157
0.76
5.6673e-07
1.552e-09
d
yr
n 1.304911826615931 2.6806e-09 deg/d
Q 1.292421032654564 1.77e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1290  
   data-arc span      7807 days (21.37 yr)  
   first obs. used      1999-12-28  
   last obs. used      2021-05-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44686  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-13 05:57:45  

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 16.68   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

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