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1010 Marlene (1923 PF)
Classification: Main-belt Asteroid          SPK-ID: 2001010
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1014000555342277 4.0714e-08  
a 2.935370984100685 1.5459e-08 au
q 2.637724203299315 1.1942e-07 au
i 3.905847790776787 4.5837e-06 deg
node 98.84144481518041 6.7518e-05 deg
peri 279.1891590700534 7.1154e-05 deg
M 148.6586140331446 2.2289e-05 deg
tp 2456641.956482863130
(2013-Dec-15.45648286)
0.00011347 JED
period 1836.931333884148
5.03
1.4511e-05
3.973e-08
d
yr
n .1959790185726695 1.5481e-09 deg/d
Q 3.233017764902056 1.7026e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1707  
   data-arc span      40937 days (112.08 yr)  
   first obs. used      1903-11-14  
   last obs. used      2015-12-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51528  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 12:36:33  

Additional Information
 Earth MOID = 1.64146 au 
 Jupiter MOID = 2.22916 au 
 T_jup = 3.264 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.6 mag n/a MPO263353  
diameter diameter 43.47 km 1.1 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 11
rotation period rot_per 31.06 h n/a LCDB (Rev. 2015-December); 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:
[Warner, B.D. (2005) Minor Planet Bul. 32, 54-58.]
[Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2015) Astron. Astrophys., in press.arXiv:1510.07422]
geometric albedo albedo 0.0647   0.003 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 11

1010 Marlene (1923 PF)          Discovered 1923-Nov-12 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1923 PF = 1937 NB1 = 1950 CJ = 1950 EY = A903 UD = A908 VA 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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