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JPL Small-Body Database Browser
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136729 (1995 UR57)
Classification: Main-belt Asteroid          SPK-ID: 2136729
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1761572199315535 6.6514e-08  
a 3.005003649283006 1.9615e-08 au
q 2.475650560541139 1.9703e-07 au
i 4.708624345457671 7.1261e-06 deg
node 203.3961542983956 4.9601e-05 deg
peri 188.6341535287604 5.1304e-05 deg
M 173.4117317333629 1.1793e-05 deg
tp 2457683.980083314020
(2016-Oct-22.48008331)
6.0376e-05 TDB
period 1902.680785832171
5.21
1.863e-05
5.101e-08
d
yr
n .1892067248908217 1.8526e-09 deg/d
Q 3.534356738024874 2.3071e-08 au
  Orbit Determination Parameters
   # obs. used (total)      475  
   data-arc span      10388 days (28.44 yr)  
   first obs. used      1990-11-15  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53267  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:29:10  

Additional Information
 Earth MOID = 1.48096 au 
 Jupiter MOID = 1.90191 au 
 T_jup = 3.223 
[ 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 15.9   n/a MPO436674  
rotation period rot_per 1.33 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. 237, A19.]

136729 (1995 UR57)          Discovered 1995-Oct-17 by Spacewatch at Kitt Peak
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ show close-approach data ]
Alternate Designations
 1995 UR57 = 2000 RQ89 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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