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102574 (1999 UH41)
Classification: Main-belt Asteroid          SPK-ID: 2102574
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2593934254767579 4.4469e-08  
a 2.42751268074291 9.9119e-09 au
q 1.797831851096739 1.0685e-07 au
i 10.57803882787616 5.2086e-06 deg
node 191.7154308889728 1.8396e-05 deg
peri 198.4485282653175 1.9838e-05 deg
M 215.003781974983 6.852e-06 deg
tp 2459756.909916510976
(2022-Jun-26.40991651)
2.8062e-05 TDB
period 1381.467549101118
3.78
8.4611e-06
2.317e-08
d
yr
n .2605924404335389 1.5961e-09 deg/d
Q 3.057193510389081 1.2483e-08 au
  Orbit Determination Parameters
   # obs. used (total)      760  
   data-arc span      9010 days (24.67 yr)  
   first obs. used      1995-09-24  
   last obs. used      2020-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54947  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:53:57  

Additional Information
 Earth MOID = .804354 au 
 Jupiter MOID = 2.39821 au 
 T_jup = 3.440 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.07   n/a E2021B55  
diameter diameter 3.832 km 0.359 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.53914 h n/a LCDB (Rev. 2020-October); 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.058   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

102574 (1999 UH41)          Discovered 1999-Oct-17 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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