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JPL Small-Body Database Browser
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268528 (2005 YN254)
Classification: Main-belt Asteroid          SPK-ID: 2268528
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1323256776035 1.0374e-07  
a 2.60510672075928 2.2851e-08 au
q 2.260384208705376 2.6845e-07 au
i 5.213936072557276 9.2345e-06 deg
node 18.12862107657593 5.5779e-05 deg
peri 356.1660597074232 5.9716e-05 deg
M 228.8565183150006 1.8131e-05 deg
tp 2459559.975295676541
(2021-Dec-11.47529568)
7.745e-05 TDB
period 1535.807223170534
4.20
2.0207e-05
5.532e-08
d
yr
n .234404419102036 3.0842e-09 deg/d
Q 2.949829232813183 2.5875e-08 au
  Orbit Determination Parameters
   # obs. used (total)      255  
   data-arc span      8147 days (22.31 yr)  
   first obs. used      1996-11-06  
   last obs. used      2019-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58665  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 13:04:30  

Additional Information
 Earth MOID = 1.26122 au 
 Jupiter MOID = 2.51399 au 
 T_jup = 3.394 
[ 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 16.3   n/a MPO437234  

268528 (2005 YN254)          Discovered 2005-Dec-30 by Spacewatch at Kitt Peak
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2134-Jan-29 03:44 00:21 Hygie 0.0445919157511168 0.0445600259320698 0.0446238254048537 3.10193275097352 3.10193247164587 2500515.655441797 20.5033605510737 2170.34773800813 76.0888598832904 43.0591428572639 59721.7098902862 T 13 CATAB v2.0f-lin.ifort 2020-Feb-25 13:04:32 2020-Feb-25 13:04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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