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4756 Asaramas (1950 HJ)
Classification: Main-belt Asteroid          SPK-ID: 2004756
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06504641677861191 2.4279e-08  
a 3.017318005800424 1.4389e-08 au
q 2.821052281241519 7.2308e-08 au
i 9.199941535943379 3.4886e-07 deg
node 239.3728450461078 1.8471e-06 deg
peri 359.995421718699 9.3385e-06 deg
M 130.1239270856511 1.225e-05 deg
tp 2458508.534065969301
(2019-Jan-25.03406597)
6.229e-05 TDB
period 1914.388397508801
5.24
1.3694e-05
3.749e-08
d
yr
n .1880496144191372 1.3452e-09 deg/d
Q 3.213583730359328 1.5325e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2560  
   data-arc span      25865 days (70.81 yr)  
   first obs. used      1950-04-21  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42073  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:43:41  

Additional Information
 Earth MOID = 1.80726 au 
 Jupiter MOID = 1.79719 au 
 T_jup = 3.225 
[ 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 12.17   n/a E2021B10  
diameter diameter 11.644 km 0.215 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 16.536 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.188   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

4756 Asaramas (1950 HJ)          Discovered 1950-Apr-21 by La Plata Obs. at La Plata
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1950 HJ = 1976 FD = 1983 RH9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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