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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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1544146551331022 3.6277e-08  
a 2.239968517128236 4.5426e-09 au
q 1.894084551046873 8.0931e-08 au
i 2.547512228090129 3.642e-06 deg
node 172.6089736664762 6.562e-05 deg
peri 198.8480798705592 6.6269e-05 deg
M 189.6143847846805 1.0279e-05 deg
tp 2459580.051086488706
(2021-Dec-31.55108649)
3.5668e-05 TDB
period 1224.507073982002
3.35
3.7249e-06
1.02e-08
d
yr
n .2939958515954571 8.9431e-10 deg/d
Q 2.585852483209599 5.244e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3020  
   data-arc span      31392 days (85.95 yr)  
   first obs. used      1934-09-07  
   last obs. used      2020-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43158  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:20:04  

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. 2020-October); 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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