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JPL Small-Body Database Browser
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15914 (1997 UM3)
Classification: Main-belt Asteroid          SPK-ID: 2015914
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2005365986536579 3.2324e-08  
a 2.379680972676571 6.7273e-09 au
q 1.902467844535183 7.7978e-08 au
i 2.018442435640597 3.9702e-06 deg
node 348.5223564236599 9.3834e-05 deg
peri 64.12908540720234 9.4427e-05 deg
M 48.59268328423817 8.9671e-06 deg
tp 2458819.514027934261
(2019-Dec-02.01402793)
3.3379e-05 TDB
period 1340.838692988996
3.67
5.6858e-06
1.557e-08
d
yr
n .2684886719650731 1.1385e-09 deg/d
Q 2.856894100817958 8.0764e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1822  
   data-arc span      14623 days (40.04 yr)  
   first obs. used      1980-01-22  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4797  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:30:47  

Additional Information
 Earth MOID = .914525 au 
 Jupiter MOID = 2.5142 au 
 T_jup = 3.511 
[ 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 14.1   n/a MPO452396  
diameter diameter 4.627 km 0.227 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 12.8 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Galad, A. (2009) Minor Planet Bull. 36, 183-186.]
geometric albedo albedo 0.273   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15914 (1997 UM3)          Discovered 1997-Oct-26 by Kobayashi, T. at Oizumi
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 UM3 = 1975 XU1 = 1980 BY4 = 1993 QT10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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