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29423 (1997 AF22)
Classification: Main-belt Asteroid          SPK-ID: 2029423
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2594145222888163 5.2592e-08  
a 3.191280633972968 3.1793e-08 au
q 2.36341609282132 1.672e-07 au
i 16.14790863756703 9.3383e-06 deg
node 334.7548051311259 2.0846e-05 deg
peri 72.98235369221186 2.713e-05 deg
M 197.0570278633765 1.7782e-05 deg
tp 2458542.995000054783
(2019-Feb-28.49500005)
0.00011061 JED
period 2082.312575808603
5.70
3.1117e-05
8.519e-08
d
yr
n .1728847072155845 2.5835e-09 deg/d
Q 4.019145175124616 4.0041e-08 au
  Orbit Determination Parameters
   # obs. used (total)      778  
   data-arc span      15888 days (43.50 yr)  
   first obs. used      1972-09-10  
   last obs. used      2016-03-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53883  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 17:01:16  

Additional Information
 Earth MOID = 1.42886 au 
 Jupiter MOID = 1.88775 au 
 T_jup = 3.083 
[ 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 12.8 mag n/a MPO319448  
rotation period rot_per 5.19 h n/a LCDB (Rev. 2016-February); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2016) Astron. J. 150, A75.]

29423 (1997 AF22)          Discovered 1997-Jan-09 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20011002/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 AF22 = 1972 RD1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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