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JPL Small-Body Database Browser
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1137 Raissa (1929 WB)
Classification: Main-belt Asteroid          SPK-ID: 2001137
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 75 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09658466356402777 3.7992e-08  
a 2.424590546703804 7.4354e-09 au
q 2.190412284469895 9.2524e-08 au
i 4.316459504402835 4.1776e-06 deg
node 78.44612717432885 5.7371e-05 deg
peri 276.9663513023077 6.1679e-05 deg
M 289.4444796699031 2.3072e-05 deg
tp 2458870.761720047715
(2020-Jan-22.26172005)
8.8544e-05 TDB
period 1378.973874219655
3.78
6.3433e-06
1.737e-08
d
yr
n .261063684185982 1.2009e-09 deg/d
Q 2.658768808937713 8.1536e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2620  
   data-arc span      42354 days (115.96 yr)  
   first obs. used      1903-12-19  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45543  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 20:54:37  

Additional Information
 Earth MOID = 1.1899 au 
 Jupiter MOID = 2.71313 au 
 T_jup = 3.501 
[ 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 10.6   n/a MPO256870  
diameter diameter 19.421 km 0.192 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 142.79 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Ferrero, A.; Klinglesmith III, D.A.; Pilcher, F. (2014) Minor Planet Bull. 41, 33.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
geometric albedo albedo 0.228   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.950   0.040 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=4.81 deg.
U-B UB 0.350   0.060 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=4.81 deg.

1137 Raissa (1929 WB)          Discovered 1929-Oct-27 by Neujmin, G. at Simeis
Independent discovery Nov. 21 by K. Reinmuth, Heidelberg, was announced first.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1929 WB = A908 BB = A910 TB = A924 JA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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