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941 Murray (A920 TF)
Classification: Main-belt Asteroid          SPK-ID: 2000941
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1965199730697951 4.4413e-08  
a 2.782634536752962 9.1379e-09 au
q 2.235791272527188 1.2307e-07 au
i 6.625794593271716 4.2233e-06 deg
node 52.30866704537463 3.6753e-05 deg
peri 334.931721520122 3.7964e-05 deg
M 159.4402715379115 1.1699e-05 deg
tp 2458249.606736661683
(2018-May-11.10673666)
5.3154e-05 TDB
period 1695.441008688432
4.64
8.3515e-06
2.287e-08
d
yr
n .2123341349862067 1.0459e-09 deg/d
Q 3.329477800978736 1.0934e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2727  
   data-arc span      36408 days (99.68 yr)  
   first obs. used      1920-10-11  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40384  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:23:10  

Additional Information
 Earth MOID = 1.24285 au 
 Jupiter MOID = 2.12017 au 
 T_jup = 3.294 
[ 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 11.5   n/a MPO502162  
diameter diameter 18.217 km 0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 3.390 h n/a LCDB (Rev. 2019-August); 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:
[Carreno, A.; Arce, E.; Fornas, G.; Mas, V. (2019) Minor Planet Bull. 46, 200-203.]
geometric albedo albedo 0.128   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.703   0.063 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=6.10 deg.
U-B UB 0.310   0.084 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=6.10 deg.
Tholen spectral type spec_T CX   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices
SMASSII spectral type spec_B X   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

941 Murray (A920 TF)          Discovered 1920-Oct-10 by Palisa, J. at Vienna
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A920 TF = 1969 FF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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