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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1923870396222712 6.444e-08  
a 2.565937623735201 1.5733e-08 au
q 2.072284480449381 1.688e-07 au
i 11.89383787186751 4.1265e-06 deg
node 226.9550190650022 3.3889e-05 deg
peri 56.25056624279025 3.7064e-05 deg
M 85.39124788915429 1.3422e-05 deg
tp 2458644.394707306665
(2019-Jun-09.89470731)		 5.6516e-05 TDB
period 1501.300291758394
4.11		 1.3807e-05
3.78e-08		 d
yr
n .2397921335100462 2.2054e-09 deg/d
Q 3.059590767021022 1.8759e-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 = 1.08254 au 
 Jupiter MOID = 2.12698 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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