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JPL Small-Body Database Browser
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48249 (2001 SY345)
Classification: Jupiter Trojan          SPK-ID: 2048249
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01370632437340988 6.7822e-08  
a 5.110309685722691 8.3179e-08 au
q 5.040266123521597 3.5624e-07 au
i 7.539678819204985 4.7714e-06 deg
node 100.4622004080595 4.8475e-05 deg
peri 266.9418255049509 0.0001991 deg
M 199.0510102839731 0.00019583 deg
tp 2460886.992182859097
(2025-Jul-30.49218286)
0.0023136 TDB
period 4219.580297009147
11.55
0.00010302
2.821e-07
d
yr
n .08531654208717612 2.083e-09 deg/d
Q 5.180353247923785 8.4319e-08 au
  Orbit Determination Parameters
   # obs. used (total)      907  
   data-arc span      10841 days (29.68 yr)  
   first obs. used      1990-08-22  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55778  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 09:43:56  

Additional Information
 Earth MOID = 4.04707 au 
 Jupiter MOID = .0694341 au 
 T_jup = 2.983 
[ 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 12.1   n/a MPO351174  
diameter diameter 18.713 km 0.785 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
geometric albedo albedo 0.080   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

48249 (2001 SY345)          Discovered 2001-Sep-23 by NEAT at Haleakala
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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