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46690 (1997 AN23)
Classification: Main-belt Asteroid          SPK-ID: 2046690
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08438083897665088 3.0713e-08  
a 2.23571609736592 6.322e-09 au
q 2.04706449735658 6.9934e-08 au
i 3.990233488961429 3.4845e-06 deg
node 309.4267950364496 4.8221e-05 deg
peri 118.3893685761841 5.4608e-05 deg
M 40.09833407427478 2.373e-05 deg
tp 2458864.497391984263
(2020-Jan-15.99739198)
8.057e-05 TDB
period 1221.021771003609
3.34
5.1791e-06
1.418e-08
d
yr
n .2948350377930616 1.2506e-09 deg/d
Q 2.42436769737526 6.8554e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1349  
   data-arc span      8842 days (24.21 yr)  
   first obs. used      1995-11-14  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49995  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:33:08  

Additional Information
 Earth MOID = 1.0647 au 
 Jupiter MOID = 2.76596 au 
 T_jup = 3.631 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4   n/a MPO250644  
diameter diameter 1.780 km 0.214 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.413 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.508   0.142 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46690 (1997 AN23)          Discovered 1997-Jan-14 by Laurie, S. P. at Church Stretton
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 AN23 = 1999 XU117 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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