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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1544449226283676 6.9553e-09  
a 2.240783326862675 4.0343e-09 au
q 1.894705719318433 1.5282e-08 au
i 2.547730408034885 3.0135e-07 deg
node 172.593908267498 6.5659e-06 deg
peri 198.693013708281 1.1689e-05 deg
M 306.2018139989593 6.8894e-06 deg
tp 2459579.589464619143
(2021-Dec-31.08946462)
2.3615e-05 TDB
period 1225.1752737837
3.35
3.3087e-06
9.059e-09
d
yr
n .2938355088478195 7.9352e-10 deg/d
Q 2.586860934406917 4.6573e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3248  
   data-arc span      31703 days (86.80 yr)  
   first obs. used      1934-09-07  
   last obs. used      2021-06-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42179  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:15:30  

Additional Information
 Earth MOID = .893855 au 
 Jupiter MOID = 2.87799 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 12.94   n/a E2021B10  
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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