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JPL Small-Body Database Browser
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39235 (2000 YH55)
Classification: Mars-crossing Asteroid          SPK-ID: 2039235
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3101296689464788 4.569e-08  
a 2.352850621614894 8.8966e-09 au
q 1.62316183725295 1.0698e-07 au
i 14.14929690856205 5.5349e-06 deg
node 110.1445627372124 1.5409e-05 deg
peri 206.1843160490388 1.647e-05 deg
M 277.8072044975892 6.7409e-06 deg
tp 2459301.468615873139
(2021-Mar-27.96861587)
2.5396e-05 TDB
period 1318.226263652899
3.61
7.4768e-06
2.047e-08
d
yr
n .2730942402880172 1.5489e-09 deg/d
Q 3.082539405976838 1.1656e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1170  
   data-arc span      7957 days (21.79 yr)  
   first obs. used      1998-03-25  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49365  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 05:47:16  

Additional Information
 Earth MOID = .620031 au 
 Jupiter MOID = 2.24178 au 
 T_jup = 3.451 
[ 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 14.4   n/a MPO358987  

39235 (2000 YH55)          Discovered 2000-Dec-30 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
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
1960-Dec-17 01:11 < 00:01 Europ 0.0207849262547454 0.0207784093057746 0.0207914433873038 6.08090407281523 6.08090398872315 2437285.548977961 0.917179826736634 339.521001077374 51.5854783250588 17.0903642042974 19750.611445648 T 24 CATAB v2.0f-lin.ifort 2020-Jan-29 05:47:36 2020-Jan-29 05:47
2116-Jan-17 19:31 00:01 David 0.0313828067153833 0.0313666958145392 0.0313989179978276 6.68990827523992 6.68990820328325 2493929.313367031 1.18336100716617 821.572465647225 52.4658748546742 12.1775902578691 19675.8329382946 T 24 CATAB v2.0f-lin.ifort 2020-Jan-29 05:47:36 2020-Jan-29 05:47

Alternate Designations
 2000 YH55 = 1999 JO17 = 1999 NK51 = 1999 WW5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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