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JPL Small-Body Database Browser
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74858 (1999 TU88)
Classification: Main-belt Asteroid          SPK-ID: 2074858
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1890476917893803 4.2174e-08  
a 2.346861308366883 9.3245e-09 au
q 1.903192595070318 9.8993e-08 au
i 4.840929230896212 4.8993e-06 deg
node 136.6582125802975 5.0788e-05 deg
peri 252.7328461361211 5.2566e-05 deg
M 139.8813700209982 1.1854e-05 deg
tp 2458090.245385655785
(2017-Dec-02.74538566)
4.3163e-05 TDB
period 1313.196039875377
3.60
7.8263e-06
2.143e-08
d
yr
n .2741403332545566 1.6338e-09 deg/d
Q 2.790530021663447 1.1087e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1090  
   data-arc span      8152 days (22.32 yr)  
   first obs. used      1996-12-15  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54016  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 08:39:09  

Additional Information
 Earth MOID = .914084 au 
 Jupiter MOID = 2.66081 au 
 T_jup = 3.531 
[ 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 15.5   n/a MPO337822  
diameter diameter 1.843 km 0.169 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 2.48 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
geometric albedo albedo 0.360   0.104 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

74858 (1999 TU88)          Discovered 1999-Oct-02 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TU88 = 1999 RR256 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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