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32991 (1997 AC3)
Classification: Main-belt Asteroid          SPK-ID: 2032991
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08212570674540401 7.4331e-08  
a 2.792844950536535 1.6048e-08 au
q 2.56348058514339 2.09e-07 au
i 11.71341491297127 6.8177e-06 deg
node 327.2767921398122 2.0624e-05 deg
peri 226.9576245267172 3.6862e-05 deg
M 213.568230850961 3.2306e-05 deg
tp 2459293.928159860527
(2021-Mar-20.42815986)
0.00015431 TDB
period 1704.781271171497
4.67
1.4694e-05
4.023e-08
d
yr
n .2111707854184801 1.8201e-09 deg/d
Q 3.022209315929681 1.7366e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1336  
   data-arc span      10605 days (29.03 yr)  
   first obs. used      1990-10-18  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50319  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 05:28:35  

Additional Information
 Earth MOID = 1.58091 au 
 Jupiter MOID = 2.0113 au 
 T_jup = 3.293 
[ 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 13.7   n/a MPO452633  
diameter diameter 5.213 km 0.347 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.259   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

32991 (1997 AC3)          Discovered 1997-Jan-04 by Kobayashi, T. at Oizumi
Reference: 20020128/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 AC3 = 1999 RQ125 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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