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1664 Felix (1929 CD)
Classification: Main-belt Asteroid          SPK-ID: 2001664
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2256354917203678 1.3678e-08  
a 2.337315341929378 5.1954e-09 au
q 1.809934045447584 3.1826e-08 au
i 6.115779301258598 4.4693e-07 deg
node 43.99410652687057 6.4914e-06 deg
peri 107.7326937289707 6.8265e-06 deg
M 242.185838558027 2.9548e-06 deg
tp 2459627.639157957293
(2022-Feb-17.13915796)
1.1884e-05 TDB
period 1305.191964892622
3.57
4.3518e-06
1.191e-08
d
yr
n .275821495751866 9.1965e-10 deg/d
Q 2.864696638411173 6.3677e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2756  
   data-arc span      33610 days (92.02 yr)  
   first obs. used      1929-02-04  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41698  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 12:46:24  

Additional Information
 Earth MOID = .83127 au 
 Jupiter MOID = 2.15208 au 
 T_jup = 3.525 
[ 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 12.62   n/a MPCxxxxx  
diameter diameter 8.424 km 0.808 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 3.3454 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Higgins, D.; Pravec, P.; Kusnirak, P.; Hornoch, K.; Brinsfield, J.W.; Allen, B.; Warner, B.D. (2008) Minor Planet Bull. 35, 123-126.]
geometric albedo albedo 0.382   0.144 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
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)

1664 Felix (1929 CD)          Discovered 1929-Feb-04 by Delporte, E. at Uccle
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1929 CD = 1936 AD = 1947 FC = 1949 UN1 = 1949 WC = 1954 DD = 1956 TV = 1961 AE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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