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JPL Small-Body Database Browser
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97050 (1999 UD45)
Classification: Main-belt Asteroid          SPK-ID: 2097050
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2051880301753877 8.6113e-08  
a 2.674220479501813 2.3264e-08 au
q 2.125502447058155 2.3036e-07 au
i 10.71425798761106 7.3798e-06 deg
node 299.1088224240654 4.2034e-05 deg
peri 52.53539095292324 4.4125e-05 deg
M 183.5916647673686 1.8979e-05 deg
tp 2459383.227952002543
(2021-Jun-17.72795200)
9.1998e-05 TDB
period 1597.328506894682
4.37
2.0843e-05
5.707e-08
d
yr
n .2253763070314603 2.9409e-09 deg/d
Q 3.22293851194547 2.8037e-08 au
  Orbit Determination Parameters
   # obs. used (total)      401  
   data-arc span      7175 days (19.64 yr)  
   first obs. used      1999-09-08  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5909  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:24:35  

Additional Information
 Earth MOID = 1.13679 au 
 Jupiter MOID = 2.26299 au 
 T_jup = 3.325 
[ 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 MPO251008  
diameter diameter 5.671 km 0.391 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.11 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
geometric albedo albedo 0.050   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

97050 (1999 UD45)          Discovered 1999-Oct-31 by CSS at Catalina
Reference: 20050224/Numbers.arcLast Updated: 2005-02-28

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