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JPL Small-Body Database Browser
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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1544146562867688 3.6339e-08  
a 2.239968517382038 4.5709e-09 au
q 1.894084548677308 8.1049e-08 au
i 2.547511997890068 3.657e-06 deg
node 172.6089809729982 6.677e-05 deg
peri 198.8480716637438 6.7432e-05 deg
M 189.6143853407834 1.0343e-05 deg
tp 2459580.051084695673
(2021-Dec-31.55108470)
3.586e-05 TDB
period 1224.507074190118
3.35
3.7481e-06
1.026e-08
d
yr
n .2939958515454898 8.9989e-10 deg/d
Q 2.585852486086769 5.2767e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2873  
   data-arc span      31280 days (85.64 yr)  
   first obs. used      1934-09-07  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43885  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:22:46  

Additional Information
 Earth MOID = .894095 au 
 Jupiter MOID = 2.8772 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 12.9   n/a MPO502166  
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-August); 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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