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249630 (1999 TT71)
Classification: Main-belt Asteroid          SPK-ID: 2249630
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09803991638837603 5.7665e-08  
a 3.157404846904861 4.1614e-08 au
q 2.847853139710055 1.9604e-07 au
i 6.907125313785933 9.3665e-06 deg
node 28.73137797594915 5.2717e-05 deg
peri 272.1750216041037 7.1504e-05 deg
M 357.5641680739596 5.0802e-05 deg
tp 2459214.365599492908
(2020-Dec-30.86559949)
0.00028929 TDB
period 2049.244762778447
5.61
4.0513e-05
1.109e-07
d
yr
n .1756744760503366 3.473e-09 deg/d
Q 3.466956554099666 4.5694e-08 au
  Orbit Determination Parameters
   # obs. used (total)      162  
   data-arc span      7137 days (19.54 yr)  
   first obs. used      1999-10-09  
   last obs. used      2019-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56331  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:33:50  

Additional Information
 Earth MOID = 1.84177 au 
 Jupiter MOID = 1.76608 au 
 T_jup = 3.187 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456908.5 (2014-Sep-08.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09580231800578048 5.78e-08  
q 2.851866424414647 1.952e-07 au
tp 2457175.025690908051
(2015-Jun-01.52569091)
0.00028199 TDB
node 28.82896755549452 5.2667e-05 deg
peri 273.2798531004497 7.2169e-05 deg
i 6.911872454521211 9.372e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      162  
   data-arc span      7137 days (19.54 yr)  
   first obs. used      1999-10-09  
   last obs. used      2019-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56331  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:33:50  

Additional Information
 Jupiter MOID = 1.76608 au 
 T_jup = 3.187 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.34079389393988E-15 -1.108444742701264E-14 -6.864828709523644E-13 -6.218351737701667E-15 -6.90134801048377E-14 -9.889476914941726E-16
q -1.108444742701264E-14 3.810462605056734E-14 4.843255851429739E-12 1.92809042532844E-14 6.399060343691888E-13 3.951117143599679E-15
tp -6.864828709523644E-13 4.843255851429739E-12 7.951747729487861E-8 -4.305504725413985E-11 1.394277599500276E-8 -1.495873116274085E-12
node -6.218351737701667E-15 1.92809042532844E-14 -4.305504725413985E-11 2.773784472116164E-9 -2.761108255012047E-9 5.533649837738082E-12
peri -6.90134801048377E-14 6.399060343691888E-13 1.394277599500276E-8 -2.761108255012047E-9 5.208338531405617E-9 -5.784225688763202E-12
i -9.889476914941726E-16 3.951117143599679E-15 -1.495873116274085E-12 5.533649837738082E-12 -5.784225688763202E-12 8.783484979265922E-11

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 16.4   n/a MPO433636  
diameter diameter 3.472 km 1.426 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.034   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249630 (1999 TT71)          Discovered 1999-Oct-09 by Spacewatch at Kitt Peak
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ show close-approach data ]
Alternate Designations
 1999 TT71 = 1999 US62 = 2005 UP384 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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