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1335 Demoulina (1934 RE)
Classification: Main-belt Asteroid          SPK-ID: 2001335
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1541932797110577 3.6518e-08  
a 2.240502921404189 4.8509e-09 au
q 1.895032427750671 8.1346e-08 au
i 2.547136071601777 3.6759e-06 deg
node 172.6131776869965 7.734e-05 deg
peri 198.915409348407 7.8121e-05 deg
M 71.96555206342542 1.0922e-05 deg
tp 2458355.628151762577
(2018-Aug-25.12815176)
3.7032e-05 TDB
period 1224.945308385595
3.35
3.9782e-06
1.089e-08
d
yr
n .2938906721267895 9.5445e-10 deg/d
Q 2.585973415057707 5.5989e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2528  
   data-arc span      30899 days (84.60 yr)  
   first obs. used      1934-09-07  
   last obs. used      2019-04-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45453  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 18:07:33  

Additional Information
 Earth MOID = .894233 au 
 Jupiter MOID = 2.87374 au 
 T_jup = 3.618 
[ 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 12.8   n/a MPO416719  
diameter diameter 7.484 km 0.130 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 74.86 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:
[Molnar, L.A.; Haegert, M.J. (2007) Minor Planet Bull. 34, 126-128.]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.218   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1335 Demoulina (1934 RE)          Discovered 1934-Sep-07 by Reinmuth, K. at Heidelberg
Independent discovery Sept. 13 by E. Delporte, Uccle, was announced first.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1934 RE = 1954 RA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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