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8815 Deanregas (1984 DR)
Classification: Main-belt Asteroid          SPK-ID: 2008815
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1377741872552413 4.6526e-08  
a 2.252429913445382 1.1483e-08 AU
q 1.942103212771051 1.0403e-07 AU
i 5.796682262027143 5.122e-06 deg
node 141.32858641064 5.2674e-05 deg
peri 291.4480010079286 5.7953e-05 deg
M 99.10134813404463 2.1503e-05 deg
tp 2456660.599018904684
(2014-Jan-03.09901890)
7.3899e-05 JED
period 1234.739541875894
3.38
9.4422e-06
2.585e-08
d
yr
n .2915594648026461 2.2296e-09 deg/d
Q 2.562756614119714 1.3065e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1218  
   data-arc span      16647 days (45.58 yr)  
   first obs. used      1969-11-15  
   last obs. used      2015-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .4938  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:00:23  

Additional Information
 Earth MOID = .965434 AU 
 T_jup = 3.607 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.7 mag n/a MPO240274  

8815 Deanregas           Discovered 1984 Feb. 23 by H. Debehogne at the European Southern Observatory.
Dean Regas (b. 1973) has been Cincinnati Observatory Center's outreach astronomer since 2000 and an educator to thousands. He has been the co-host of the iconic PBS show "Star Gazers" since 2010. Name suggested by F. N. Bowman.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2015-01-05Last Updated: 2015-01-07

[ show close-approach data ]
Alternate Designations
 1984 DR = 1969 VX1 = 1994 AN1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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