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JPL Small-Body Database Browser
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2061 Anza (1960 UA)
Classification: Amor [NEO]          SPK-ID: 2002061
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.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 154 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5354831542165049 2.4681e-08  
a 2.264865880852141 1.1376e-09 au
q 1.052068355096094 5.5969e-08 au
i 3.798259051526492 3.0639e-06 deg
node 207.3910131805888 5.2832e-05 deg
peri 157.034334318224 5.2922e-05 deg
M 64.84105952359286 2.1829e-06 deg
tp 2458376.261715160616
(2018-Sep-14.76171516)
7.6799e-06 TDB
period 1244.979387062693
3.41
9.38e-07
2.568e-09
d
yr
n .2891614140289951 2.1786e-10 deg/d
Q 3.477663406608189 1.7468e-09 au
  Orbit Determination Parameters
   # obs. used (total)      915  
   data-arc span      21294 days (58.30 yr)  
   first obs. used      1960-10-22  
   last obs. used      2019-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44992  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Apr-21 07:25:28  

Additional Information
 Earth MOID = .0560425 au 
 Jupiter MOID = 1.99007 au 
 T_jup = 3.409 
[ 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 16.56   n/a MPO452189  
diameter diameter 2.6 km n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543 based on assumed dark albedo (0.06)
rotation period rot_per 6.712 h n/a LCDB (Rev. 2019-January); 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:
[Warner, B.D. (2018) Minor Planet Bull. 45, 366-379.]
B-V BV 0.825   0.092 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=3.25, mean=7.04, max.=10.83) deg.
U-B UB 0.350   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=3.25 deg.
Tholen spectral type spec_T TCG:   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

2061 Anza (1960 UA)          Discovered 1960-Oct-22 by Giclas, H. L. at Flagstaff (LO)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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