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3032 Evans (1984 CA1)
Classification: Main-belt Asteroid          SPK-ID: 2003032
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08257407198212172 4.3647e-08  
a 2.894893968917488 1.3369e-08 au
q 2.655850785947485 1.2889e-07 au
i 3.222893825576641 3.5574e-06 deg
node 88.38231853175621 8.1029e-05 deg
peri 274.0594483642833 8.3837e-05 deg
M 327.113752035441 2.3428e-05 deg
tp 2459364.846040530079
(2021-May-30.34604053)
0.00011754 TDB
period 1799.067338256077
4.93
1.2463e-05
3.412e-08
d
yr
n .2001036828054281 1.3862e-09 deg/d
Q 3.133937151887491 1.4473e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2812  
   data-arc span      31308 days (85.72 yr)  
   first obs. used      1935-03-29  
   last obs. used      2020-12-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44885  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 14:35:43  

Additional Information
 Earth MOID = 1.65389 au 
 Jupiter MOID = 2.27037 au 
 T_jup = 3.282 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.60   n/a MPCxxxxx  
diameter diameter 13.747 km 0.282 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.3970 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Slivan, S.M.; Neugent, K.F., Melton, C.; Beck, M. (2018) Minor Planet Bull. 45, 72-75.]
geometric albedo albedo 0.257   0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3032 Evans (1984 CA1)          Discovered 1984-Feb-08 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1984 CA1 = 1935 FD = 1952 VA = 1957 TL = 1957 UO = 1969 BF = 1972 XT1 = 1976 PK = 1979 FV2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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