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74041 (1998 HC88)
Classification: Main-belt Asteroid          SPK-ID: 2074041
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1927590267256484 6.4378e-08  
a 2.566872040675944 1.5897e-08 au
q 2.072084284385971 1.6885e-07 au
i 11.89454923970189 4.1268e-06 deg
node 226.9616346190496 3.3882e-05 deg
peri 56.26158900012393 3.7041e-05 deg
M 349.4625634100646 1.3536e-05 deg
tp 2458644.468052497616
(2019-Jun-09.96805250)
5.6396e-05 TDB
period 1502.120441157383
4.11
1.3955e-05
3.821e-08
d
yr
n .2396612083400052 2.2264e-09 deg/d
Q 3.061659796965919 1.8962e-08 au
  Orbit Determination Parameters
   # obs. used (total)      464  
   data-arc span      8730 days (23.90 yr)  
   first obs. used      1995-10-24  
   last obs. used      2019-09-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58122  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:43:11  

Additional Information
 Earth MOID = 1.08186 au 
 Jupiter MOID = 2.12454 au 
 T_jup = 3.376 
[ 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 15.7   n/a MPO436300  
diameter diameter 4.487 km 0.252 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.035   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74041 (1998 HC88)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 HC88 = 2003 SQ101 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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