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249639 (1999 TU162)
Classification: Main-belt Asteroid          SPK-ID: 2249639
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1445318210191464 5.6676e-08  
a 3.128058260580864 4.0963e-08 au
q 2.675954303925128 1.8146e-07 au
i 5.659595070749365 6.389e-06 deg
node 210.1122009046597 5.8488e-05 deg
peri 165.2578527263584 6.2179e-05 deg
M 267.5242483380291 2.5622e-05 deg
tp 2459519.582091741732
(2021-Nov-01.08209174)
0.00015082 TDB
period 2020.741109627233
5.53
3.9693e-05
1.087e-07
d
yr
n .1781524601468663 3.4994e-09 deg/d
Q 3.580162217236599 4.6883e-08 au
  Orbit Determination Parameters
   # obs. used (total)      280  
   data-arc span      8061 days (22.07 yr)  
   first obs. used      1997-04-14  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51948  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 08:41:03  

Additional Information
 Earth MOID = 1.67779 au 
 Jupiter MOID = 1.8897 au 
 T_jup = 3.190 
[ 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 15.7   n/a MPO437159  
diameter diameter 5.011 km 0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.040   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249639 (1999 TU162)          Discovered 1999-Oct-09 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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