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JPL Small-Body Database Browser
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2146 Stentor (1976 UQ)
Classification: Jupiter Trojan          SPK-ID: 2002146
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .101563968755984 5.3889e-08  
a 5.196015068068133 9.6173e-08 au
q 4.66828715603924 3.3602e-07 au
i 39.27041808545208 5.2778e-06 deg
node 131.3149058962241 7.8133e-06 deg
peri 273.1038167426241 3.5064e-05 deg
M 271.8320021401841 3.8563e-05 deg
tp 2459660.028169415230
(2022-Mar-21.52816942)
0.00047361 TDB
period 4326.174465206112
11.84
0.00012011
3.288e-07
d
yr
n .08321439712969331 2.3103e-09 deg/d
Q 5.723742980097027 1.0594e-07 au
  Orbit Determination Parameters
   # obs. used (total)      1668  
   data-arc span      15712 days (43.02 yr)  
   first obs. used      1976-10-24  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49973  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:12:58  

Additional Information
 Earth MOID = 3.92499 au 
 Jupiter MOID = .0839569 au 
 T_jup = 2.541 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.9   n/a MPO365270  
diameter diameter 50.755 km 0.330 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
rotation period rot_per 16.40 h n/a LCDB (Rev. 2019-January); 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:
[Stephens, R.D.; Coley, D.R.; Warner, B.D.; French, L.M. (2016) Minor Planet Bull. 43, 323-331.]
geometric albedo albedo 0.082   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

2146 Stentor (1976 UQ)          Discovered 1976-Oct-24 by West, R. M. at La Silla
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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