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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1966943775423998 4.2437e-08  
a 2.782230531869279 8.9722e-09 au
q 2.234981429223791 1.1778e-07 au
i 6.626358012518891 4.1764e-06 deg
node 52.30618276843195 3.4817e-05 deg
peri 334.9099883349551 3.6038e-05 deg
M 201.9469279658093 1.171e-05 deg
tp 2459944.698064064630
(2022-Dec-31.19806406)
5.7272e-05 TDB
period 1695.071785794275
4.64
8.1995e-06
2.245e-08
d
yr
n .2123803859028374 1.0273e-09 deg/d
Q 3.329479634514766 1.0737e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2869  
   data-arc span      36687 days (100.44 yr)  
   first obs. used      1920-10-11  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40069  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:01:13  

Additional Information
 Earth MOID = 1.24084 au 
 Jupiter MOID = 2.12138 au 
 T_jup = 3.295 
[ 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 11.55   n/a E2021B10  
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. 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:
[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

Alternate Designations
 A920 TF = 1969 FF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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