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2070 Humason (1964 TQ)
Classification: Main-belt Asteroid          SPK-ID: 2002070
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1549364822779507 4.2044e-08  
a 2.249587228526116 5.4869e-09 au
q 1.901044096760875 9.42e-08 au
i 2.752815581967717 4.4969e-06 deg
node 1.225707078396598 6.374e-05 deg
peri 350.310416778864 6.4532e-05 deg
M 194.0627188462699 1.1106e-05 deg
tp 2459568.559925771867
(2021-Dec-20.05992577)
3.8726e-05 TDB
period 1232.402820246373
3.37
4.5089e-06
1.234e-08
d
yr
n .2921122818657876 1.0687e-09 deg/d
Q 2.598130360291357 6.337e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2527  
   data-arc span      23978 days (65.65 yr)  
   first obs. used      1954-10-23  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44451  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:40:27  

Additional Information
 Earth MOID = .895411 au 
 Jupiter MOID = 2.81993 au 
 T_jup = 3.611 
[ 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 13.5   n/a MPO502173  
diameter diameter 4.570 km 0.154 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.1883 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2018) http://www.asu.cas.cz/~ppravec/neo.htm]
[Benishek, V.; Pravec, P.; Pilcher, F.; Chirony, V. (2019) CBET 4599.]
geometric albedo albedo 0.405   0.087 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2070 Humason (1964 TQ)          Discovered 1964-Oct-14 by Goethe Link Observatory at Brooklyn
Discovered by the Indiana Asteroid Program, Goethe Link Observatory, University of Indiana. This program was conceived and directed by F. K. Edmondson; the plates were blinked and measured astrometrically by B. Potter and, following her retirement, by D. Owings; and the photometry was performed under the direction of T. Gehrels. During the years 1947-1967, in which the plates were exposed, a large number of people participated in various aspects of the program.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1964 TQ = 1954 UJ1 = 1964 XM = 1974 QP = 1974 RB2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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