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2529 Rockwell Kent (1977 QL2)
Classification: Main-belt Asteroid          SPK-ID: 2002529
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09496063779400291 3.8817e-08  
a 2.533312133694411 8.8464e-09 au
q 2.292747197747504 9.834e-08 au
i 4.412417450432594 3.7079e-06 deg
node 207.0834768826637 5.069e-05 deg
peri 116.5327498314923 5.3928e-05 deg
M 283.7757161337326 2.1068e-05 deg
tp 2459512.333187346238
(2021-Oct-24.83318735)
8.6913e-05 TDB
period 1472.75830943327
4.03
7.7144e-06
2.112e-08
d
yr
n .2444392930558519 1.2804e-09 deg/d
Q 2.773877069641319 9.6865e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2434  
   data-arc span      24389 days (66.77 yr)  
   first obs. used      1953-10-08  
   last obs. used      2020-07-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46482  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 13:54:07  

Additional Information
 Earth MOID = 1.28292 au 
 Jupiter MOID = 2.48043 au 
 T_jup = 3.439 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.01   n/a E2021B10  
rotation period rot_per 7. h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]

2529 Rockwell Kent (1977 QL2)          Discovered 1977-Aug-21 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1977 QL2 = 1953 TK1 = 1969 TX2 = 1973 TO 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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