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72273 (2001 AR44)
Classification: Main-belt Asteroid          SPK-ID: 2072273
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1624368062701529 3.7011e-08  
a 2.390095821466832 9.0129e-09 au
q 2.001856289548122 8.7995e-08 au
i 3.381570692004175 4.7321e-06 deg
node 41.59873398479819 6.4599e-05 deg
peri 14.68708529847614 6.6085e-05 deg
M 198.7127427723834 1.3437e-05 deg
tp 2459805.170737206107
(2022-Aug-13.67073721)
5.1319e-05 TDB
period 1349.650735811049
3.70
7.6341e-06
2.09e-08
d
yr
n .2667356749771743 1.5088e-09 deg/d
Q 2.778335353385542 1.0477e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1098  
   data-arc span      7608 days (20.83 yr)  
   first obs. used      1999-08-13  
   last obs. used      2020-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5378  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:01:09  

Additional Information
 Earth MOID = 1.01306 au 
 Jupiter MOID = 2.56255 au 
 T_jup = 3.512 
[ 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 15.66   n/a E2021B10  
diameter diameter 4.216 km 0.192 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.075   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

72273 (2001 AR44)          Discovered 2001-Jan-15 by Kobayashi, T. at Oizumi
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2001 AR44 = 2002 JV142 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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