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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1155618092693233 6.6943e-08  
a 2.707545975470377 2.1034e-08 AU
q 2.394657063865146 1.8112e-07 AU
i 8.321252527990065 7.2003e-06 deg
node 49.23223513526656 4.2274e-05 deg
peri 7.068392025905612 5.202e-05 deg
M 246.3537288436958 2.9012e-05 deg
tp 2457514.206281966902
(2016-May-05.70628197)
0.00013241 JED
period 1627.279624984213
4.46
1.8962e-05
5.192e-08
d
yr
n .22122811253382 2.5779e-09 deg/d
Q 3.020434887075609 2.3464e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      959  
   data-arc span      9526 days (26.08 yr)  
   first obs. used      1987-05-30  
   last obs. used      2013-06-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52964  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 19:41:38  

Additional Information
 Earth MOID = 1.40612 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 Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[Tatge, C.B.; Odden, C.; Arion, D.N.; Feinberg, R.T. (2012) Minor Planet Bul. 39, 135-136.]

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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