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4957 Brucemurray (1990 XJ)
Classification: Amor [NEO]          SPK-ID: 2004957
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 123 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .21894379618659 4.1958e-08  
a 1.565413234637737 4.2675e-09 au
q 1.222675718445422 6.714e-08 au
i 35.01006599890055 9.7647e-07 deg
node 254.8939278260795 3.0013e-06 deg
peri 97.47192008713264 1.6498e-05 deg
M 264.6227184496905 2.5799e-05 deg
tp 2459586.032795342777
(2022-Jan-06.53279534)
5.1819e-05 TDB
period 715.3884574431772
1.96
2.9254e-06
8.009e-09
d
yr
n .5032231038318011 2.0578e-09 deg/d
Q 1.908150750830052 5.2019e-09 au
  Orbit Determination Parameters
   # obs. used (total)      610  
   data-arc span      16537 days (45.28 yr)  
   first obs. used      1976-03-11  
   last obs. used      2021-06-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51182  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jun-21 06:26:00  

Additional Information
 Earth MOID = .425151 au 
 Jupiter MOID = 3.60163 au 
 T_jup = 4.201 
[ 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 14.86   n/a MPCxxxxx  
diameter diameter 3.499 km 0.095 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2012ApJ...760L..12M)  
rotation period rot_per 2.892 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; Sarounova, L.; Wolf, M. (1996) Icarus 124, 471-482.]
[Pravec, P.; Wolf, M.; Sarounova, L. (1998) Icarus 136, 124-153.]
[Kaasalainen, M.; et al. (2004) Icarus 167, 178-196.]
geometric albedo albedo 0.132   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2012ApJ...760L..12M)  
SMASSII spectral type spec_B S   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)

4957 Brucemurray (1990 XJ)          Discovered 1990-Dec-15 by Helin, E. F. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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