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1629 Pecker (1952 DB)
Classification: Main-belt Asteroid          SPK-ID: 2001629
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1550442943121214 3.2842e-08  
a 2.237788560283034 5.7832e-09 au
q 1.890832212134213 7.4287e-08 au
i 9.700236494963644 3.1728e-06 deg
node 132.6935973291708 2.1865e-05 deg
peri 106.8511652625859 2.4173e-05 deg
M 303.2451559766149 1.0794e-05 deg
tp 2458793.264667988415
(2019-Nov-05.76466799)
3.6875e-05 TDB
period 1222.719957564081
3.35
4.7399e-06
1.298e-08
d
yr
n .2944255532699382 1.1413e-09 deg/d
Q 2.584744908431855 6.6799e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2425  
   data-arc span      25608 days (70.11 yr)  
   first obs. used      1949-03-30  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42338  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:25:29  

Additional Information
 Earth MOID = .904776 au 
 Jupiter MOID = 2.47852 au 
 T_jup = 3.602 
[ 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 12.3   n/a MPO435711  
diameter diameter 8.536 km 0.186 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 8.2166 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:
[Pravec, P.; Wolf, M.; Sarounova, L. (2006) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.256   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
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)

1629 Pecker (1952 DB)          Discovered 1952-Feb-28 by Boyer, L. at Algiers
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1952 DB = 1942 DE = 1949 FO1 = 1949 HK = 1952 DE1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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