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1633 Chimay (1929 EC)
Classification: Main-belt Asteroid          SPK-ID: 2001633
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1237825206656274 3.0494e-08  
a 3.192918129981305 1.3192e-08 au
q 2.797690675573238 9.4127e-08 au
i 2.676388738049555 3.5885e-06 deg
node 114.0777929947641 7.7709e-05 deg
peri 65.94780772564673 7.9399e-05 deg
M 49.67830471781416 1.5451e-05 deg
tp 2458712.929476870735
(2019-Aug-17.42947687)
8.977e-05 TDB
period 2083.915482112096
5.71
1.2915e-05
3.536e-08
d
yr
n .1727517277404801 1.0706e-09 deg/d
Q 3.588145584389372 1.4825e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3293  
   data-arc span      37883 days (103.72 yr)  
   first obs. used      1917-01-22  
   last obs. used      2020-10-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44213  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:17:00  

Additional Information
 Earth MOID = 1.80242 au 
 Jupiter MOID = 1.37339 au 
 T_jup = 3.183 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456537.5 (2013-Sep-02.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1238971461110534 3.0463e-08  
q 2.796406538204635 9.4004e-08 au
tp 2456623.149089039604
(2013-Nov-26.64908904)
9.2904e-05 TDB
node 114.0959735820955 7.7725e-05 deg
peri 65.04576813477986 7.9416e-05 deg
i 2.676227217149457 3.5886e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3293  
   data-arc span      37883 days (103.72 yr)  
   first obs. used      1917-01-22  
   last obs. used      2020-10-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44213  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:17:00  

Additional Information
 Jupiter MOID = 1.37339 au 
 T_jup = 3.183 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.279679742732115E-16 -2.844348557103676E-15 1.154857076064509E-13 -7.817951656206389E-16 2.264132985382788E-14 1.940522676201355E-16
q -2.844348557103676E-15 8.836844770158839E-15 -6.811717450190175E-13 7.978633339435246E-15 -1.367375008039124E-13 -6.100160354869567E-16
tp 1.154857076064509E-13 -6.811717450190175E-13 8.631143379422157E-9 -1.177095509824435E-11 1.539411957988313E-9 -1.100281421829205E-12
node -7.817951656206389E-16 7.978633339435246E-15 -1.177095509824435E-11 6.041221443520657E-9 -6.035789688700192E-9 -3.918493755906851E-11
peri 2.264132985382788E-14 -1.367375008039124E-13 1.539411957988313E-9 -6.035789688700192E-9 6.306832811452544E-9 3.894732528620947E-11
i 1.940522676201355E-16 -6.100160354869567E-16 -1.100281421829205E-12 -3.918493755906851E-11 3.894732528620947E-11 1.287830582422859E-11

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 10.7   n/a MPO473786  
diameter diameter 37.428 km 0.466 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 6.5911 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2008) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Brinsfield, J.W. (2008) Minor Planet Bull. 35, 179-181.]
[Hanus, J.; Broz, M.; Durech, J.; Warner, B.D.; et al. (2013) Astron. Astrophys. 559, A134.]
[Chang, C.-K.; Ip, W.-H.; Cheng, Y.-C.; Ngeow, C.-C.; et al. (2014) Astrophys. J. 788, A17.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.080   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1633 Chimay (1929 EC)          Discovered 1929-Mar-03 by Arend, S. at Uccle
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1929 EC = 1941 KF = 1946 HC = 1948 RO = 1951 AM = 1952 HY3 = 1954 SS = 1955 XN = 1972 VM1 = A917 BB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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