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213621 (2002 QH49)
Classification: Main-belt Asteroid          SPK-ID: 2213621
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2344456467332482 6.7463e-08  
a 2.461815028422215 1.713e-08 au
q 1.884653211946139 1.5962e-07 au
i 8.017516455122401 4.1827e-06 deg
node 115.2879565500406 4.2583e-05 deg
peri 260.5018031182959 4.4042e-05 deg
M 231.5708885037554 1.5293e-05 deg
tp 2459703.818080823337
(2022-May-04.31808082)
6.42e-05 TDB
period 1410.852313664879
3.86
1.4725e-05
4.031e-08
d
yr
n .2551649074202894 2.6632e-09 deg/d
Q 3.038976844898291 2.1146e-08 au
  Orbit Determination Parameters
   # obs. used (total)      407  
   data-arc span      7412 days (20.29 yr)  
   first obs. used      2000-01-06  
   last obs. used      2020-04-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57453  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:43:25  

Additional Information
 Earth MOID = .90406 au 
 Jupiter MOID = 2.46988 au 
 T_jup = 3.438 
[ 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 16.51   n/a E2021B55  
diameter diameter 2.820 km 0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

213621 (2002 QH49)          Discovered 2002-Aug-19 by Hoenig, S. F. at Palomar
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

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