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249632 (1999 TT109)
Classification: Main-belt Asteroid          SPK-ID: 2249632
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 .2112840563189601 6.2485e-08  
a 3.105243538314574 3.9506e-08 au
q 2.44915508768123 2.0381e-07 au
i 9.707928128635416 6.5968e-06 deg
node 206.1487141691807 3.1156e-05 deg
peri 158.4260471807883 3.4202e-05 deg
M 281.2473893836204 1.9863e-05 deg
tp 2459437.724395108300
(2021-Aug-11.22439511)
0.00011701 TDB
period 1998.673834518577
5.47
3.8142e-05
1.044e-07
d
yr
n .1801194340880105 3.4373e-09 deg/d
Q 3.761331988947917 4.7853e-08 au
  Orbit Determination Parameters
   # obs. used (total)      313  
   data-arc span      7159 days (19.60 yr)  
   first obs. used      1999-10-04  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49839  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:25:35  

Additional Information
 Earth MOID = 1.4509 au 
 Jupiter MOID = 1.73446 au 
 T_jup = 3.164 
[ 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 15.3   n/a MPO437159  
diameter diameter 7.581 km 2.403 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.018   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

249632 (1999 TT109)          Discovered 1999-Oct-04 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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