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24702 (1991 OR)
Classification: Inner Main-belt Asteroid          SPK-ID: 2024702
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09030552639273867 7.6733e-08  
a 1.944647573063964 1.5235e-08 AU
q 1.769035150330061 1.5058e-07 AU
i 24.25639478541094 8.5086e-06 deg
node 135.2135369997392 1.6926e-05 deg
peri 232.9542766466516 4.8097e-05 deg
M 174.657710038131 4.9412e-05 deg
tp 2456519.942846153632
(2013-Aug-15.44284615)
0.0001346 JED
period 990.5121013376581
2.71
1.164e-05
3.187e-08
d
yr
n .363448361220252 4.2712e-09 deg/d
Q 2.120259995797866 1.6611e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      600  
   data-arc span      9154 days (25.06 yr)  
   first obs. used      1990-01-26  
   last obs. used      2015-02-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 15:16:23  

Additional Information
 Earth MOID = .803008 AU 
 T_jup = 3.786 
[ 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 14.7 mag n/a MPO233659  
rotation period rot_per 59.5 h n/a LCDB (Rev. 2015-Feb); 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. (2012) Minor Planet Bul. 39, 245-252.]

24702 (1991 OR)          Discovered 1991-Jul-18 by Holt, H. E. at Palomar
Reference: 20010606/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 OR = 1999 NN1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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