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134638 (1999 UD37)
Classification: Main-belt Asteroid          SPK-ID: 2134638
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .129453655255981 3.9372e-08  
a 2.729981582533279 1.7897e-08 au
q 2.376575487892838 1.1301e-07 au
i 5.286042857271966 5.7508e-06 deg
node 31.43960193839369 5.2639e-05 deg
peri 250.0549034208079 5.8048e-05 deg
M 328.6362938956058 2.5708e-05 deg
tp 2459344.036673601156
(2021-May-09.53667360)
0.00011801 TDB
period 1647.547720426334
4.51
1.6201e-05
4.436e-08
d
yr
n .2185065692099305 2.1487e-09 deg/d
Q 3.08338767717372 2.0213e-08 au
  Orbit Determination Parameters
   # obs. used (total)      547  
   data-arc span      9921 days (27.16 yr)  
   first obs. used      1993-03-23  
   last obs. used      2020-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56435  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:07:30  

Additional Information
 Earth MOID = 1.36486 au 
 Jupiter MOID = 2.05928 au 
 T_jup = 3.336 
[ 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 15.57   n/a E2021B55  
rotation period rot_per 5.25 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

134638 (1999 UD37)          Discovered 1999-Oct-16 by Spacewatch at Kitt Peak
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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