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637 Chrysothemis (A907 EN)
Classification: Main-belt Asteroid          SPK-ID: 2000637
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1238418765598952 3.2111e-08  
a 3.173606037720202 1.2028e-08 au
q 2.780580710547119 9.8988e-08 au
i .2708113577255844 3.6277e-06 deg
node 353.3650943860312 0.00075106 deg
peri 173.2853895880397 0.00075123 deg
M 81.66026902446458 1.5145e-05 deg
tp 2458732.079112057005
(2019-Sep-05.57911206)
8.6714e-05 TDB
period 2065.037522824692
5.65
1.174e-05
3.214e-08
d
yr
n .1743309726922389 9.9107e-10 deg/d
Q 3.566631364893286 1.3517e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3307  
   data-arc span      41621 days (113.95 yr)  
   first obs. used      1907-03-21  
   last obs. used      2021-03-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42053  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 11:13:04  

Additional Information
 Earth MOID = 1.78725 au 
 Jupiter MOID = 1.40638 au 
 T_jup = 3.189 
[ 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 11.62   n/a E2021B10  
diameter diameter 24.194 km 0.389 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.7 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Warner, B.D. (2017) Minor Planet Bull. 44, 12-19.]
geometric albedo albedo 0.080   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

637 Chrysothemis (A907 EN)          Discovered 1907-Mar-11 by Metcalf, J. H. at Taunton
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A907 EN = 1930 GC = 1955 UV = 1975 JM 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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