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9983 Rickfienberg (1995 DA)
Classification: Main-belt Asteroid          SPK-ID: 2009983
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1151872897460026 5.8006e-08  
a 2.706810771525621 1.7886e-08 au
q 2.395020574898298 1.6208e-07 au
i 8.322023088584434 6.5522e-06 deg
node 49.22098675599664 4.0523e-05 deg
peri 7.089961916636679 5.0553e-05 deg
M 19.07384976813455 2.9236e-05 deg
tp 2457514.317095214186
(2016-May-05.81709521)
0.00013192 JED
period 1626.616865501681
4.45
1.6122e-05
4.414e-08
d
yr
n .2213182511721768 2.1936e-09 deg/d
Q 3.018600968152943 1.9946e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1103  
   data-arc span      10483 days (28.70 yr)  
   first obs. used      1987-05-30  
   last obs. used      2016-02-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52588  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 16:05:21  

Additional Information
 Earth MOID = 1.40527 au 
 Jupiter MOID = 2.33262 au 
 T_jup = 3.340 
[ 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 13.3 mag n/a MPO266011  
rotation period rot_per 5.2963 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Published Reference List:
[Tatge, C.B.; Odden, C.; Arion, D.N.; Feinberg, R.T. (2012) Minor Planet Bul. 39, 135-136.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]

9983 Rickfienberg           Discovered 1995 Feb. 19 by D. di Cicco at Sudbury.
Trained as an astronomer at Rice and Harvard universities, Richard Tresch Fienberg (b. 1956) became editor of Sky & Telescope in 2000. As the fourth at the helm in the magazine's six-decade history, he says it's a dream job that conflicts with stargazing at his private observatory in New Hampshire.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030501/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1995 DA = 1987 KS2 = 1993 TS37 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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