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181712 (1993 TQ16)
Classification: Main-belt Asteroid          SPK-ID: 2181712
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2418283675141365 7.1759e-08  
a 2.5816419969599 2.3432e-08 au
q 1.957327727329152 1.9324e-07 au
i 18.7109868725311 6.992e-06 deg
node 22.62679640112241 1.2103e-05 deg
peri 324.710690774859 1.8179e-05 deg
M 215.9881217144197 1.5004e-05 deg
tp 2459806.591602567426
(2022-Aug-15.09160257)
6.2111e-05 TDB
period 1515.104028374586
4.15
2.0628e-05
5.648e-08
d
yr
n .2376074469198068 3.235e-09 deg/d
Q 3.205956266590647 2.9099e-08 au
  Orbit Determination Parameters
   # obs. used (total)      616  
   data-arc span      10066 days (27.56 yr)  
   first obs. used      1993-10-09  
   last obs. used      2021-05-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50499  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:09:44  

Additional Information
 Earth MOID = .977414 au 
 Jupiter MOID = 2.31483 au 
 T_jup = 3.310 
[ 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 15.37   n/a MPCxxxxx  
diameter diameter 3.953 km 0.862 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.094   0.079 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

181712 (1993 TQ16)          Discovered 1993-Oct-09 by Elst, E. W. at La Silla
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

Alternate Designations
 1993 TQ16 = 2000 FN55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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