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72904 (2001 KM74)
Classification: Main-belt Asteroid          SPK-ID: 2072904
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0224114700864197 5.3598e-08  
a 3.147697253331192 2.4236e-08 au
q 3.077152730497055 1.7324e-07 au
i 20.52487854160277 6.0759e-06 deg
node 224.5398317467102 1.194e-05 deg
peri 198.0687483557282 0.00011282 deg
M 12.42716703569614 0.00010926 deg
tp 2459130.086246668873
(2020-Oct-07.58624667)
0.00061932 TDB
period 2039.801277828857
5.58
2.3559e-05
6.45e-08
d
yr
n .1764877804092663 2.0384e-09 deg/d
Q 3.21824177616533 2.478e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1010  
   data-arc span      9395 days (25.72 yr)  
   first obs. used      1995-05-25  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52917  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:04:42  

Additional Information
 Earth MOID = 2.08891 au 
 Jupiter MOID = 1.90576 au 
 T_jup = 3.110 
[ 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 14.21   n/a MPCxxxxx  
diameter diameter 7.932 km 0.254 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.48 h n/a LCDB (Rev. 2020-October); 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:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
geometric albedo albedo 0.077   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

72904 (2001 KM74)          Discovered 2001-May-26 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 KM74 = 2002 TO196 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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