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1904 Massevitch (1972 JM)
Classification: Main-belt Asteroid          SPK-ID: 2001904
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 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07277371408962754 3.909e-08  
a 2.744665771041035 1.008e-08 au
q 2.544926248947708 1.0717e-07 au
i 12.82505939726564 3.6672e-06 deg
node 106.3611889778891 1.934e-05 deg
peri 262.0940163678829 3.264e-05 deg
M 74.87503536637954 2.586e-05 deg
tp 2458655.064342103280
(2019-Jun-20.56434210)
0.00011947 TDB
period 1660.858472177202
4.55
9.1498e-06
2.505e-08
d
yr
n .2167553744227705 1.1941e-09 deg/d
Q 2.944405293134363 1.0814e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2805  
   data-arc span      26130 days (71.54 yr)  
   first obs. used      1949-05-03  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42371  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:03:21  

Additional Information
 Earth MOID = 1.58055 au 
 Jupiter MOID = 2.44471 au 
 T_jup = 3.308 
[ 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 11.1   n/a MPO416727  
diameter diameter 13.503 km 0.211 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 5.394 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Bohn, L.; Hibbler, B.; Stein, G.; Ditteon, R. (2015) Minor Planet Bull. 42, 89-90.]
geometric albedo albedo 0.581   0.228 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B R   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)

1904 Massevitch (1972 JM)          Discovered 1972-May-09 by Smirnova, T. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1972 JM = 1949 JH = 1951 XN = 1958 JA = 1962 CE = 1965 YH = 1971 BF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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