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72849 (2001 HK40)
Classification: Main-belt Asteroid          SPK-ID: 2072849
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08618776033471949 5.2402e-08  
a 3.197359230560004 2.7015e-08 au
q 2.921785999492496 1.653e-07 au
i 11.82867142572699 3.9405e-06 deg
node 115.0505323907004 3.0374e-05 deg
peri 103.5617268990256 4.2516e-05 deg
M 150.1467198088811 3.3283e-05 deg
tp 2458329.538567182914
(2018-Jul-30.03856718)
0.00018962 TDB
period 2088.264839972914
5.72
2.6466e-05
7.246e-08
d
yr
n .172391927072176 2.1848e-09 deg/d
Q 3.472932461627513 2.9343e-08 au
  Orbit Determination Parameters
   # obs. used (total)      952  
   data-arc span      7698 days (21.08 yr)  
   first obs. used      2000-01-13  
   last obs. used      2021-02-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54242  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:04:23  

Additional Information
 Earth MOID = 1.94154 au 
 Jupiter MOID = 1.67815 au 
 T_jup = 3.156 
[ 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 13.91   n/a E2021B10  
diameter diameter 9.216 km 0.377 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.076   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

72849 (2001 HK40)          Discovered 2001-Apr-27 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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