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1136 Mercedes (1929 UA)
Classification: Main-belt Asteroid          SPK-ID: 2001136
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 52 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2535323825030809 9.0929e-09  
a 2.567316126837941 5.983e-09 au
q 1.916418352562137 2.3358e-08 au
i 8.975231659015964 1.5316e-07 deg
node 209.4781238929471 2.1898e-06 deg
peri 148.6975561378685 4.6501e-06 deg
M 145.8911545094589 2.75e-06 deg
tp 2458787.602893175323
(2019-Oct-31.10289318)
1.0654e-05 TDB
period 1502.510273456447
4.11
5.2523e-06
1.438e-08
d
yr
n .2395990272810839 8.3756e-10 deg/d
Q 3.218213901113746 7.4999e-09 au
  Orbit Determination Parameters
   # obs. used (total)      4275  
   data-arc span      32974 days (90.28 yr)  
   first obs. used      1931-03-10  
   last obs. used      2021-06-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38166  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:00:00  

Additional Information
 Earth MOID = .919123 au 
 Jupiter MOID = 2.27832 au 
 T_jup = 3.369 
[ 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 11.24   n/a MPO614063  
diameter diameter 25.296 km 0.249 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 24.6163 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Brinsfield, J. (2008) Minor Planet Bull. 35, 119-122.]
[Behrend, R. (2019) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.084   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1136 Mercedes (1929 UA)          Discovered 1929-Oct-30 by Comas Sola, J. at Barcelona
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1929 UA = 1966 XB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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