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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .155374121922338 2.6407e-08  
a 2.238213707728656 5.0377e-09 au
q 1.890453218215775 5.8526e-08 au
i 9.702043191041891 2.98e-06 deg
node 132.6835140462689 1.8143e-05 deg
peri 106.7736326426987 2.077e-05 deg
M 61.05773437506949 1.0761e-05 deg
tp 2458793.061703112337
(2019-Nov-05.56170311)
3.6356e-05 TDB
period 1223.068422762351
3.35
4.1293e-06
1.131e-08
d
yr
n .2943416682992478 9.9374e-10 deg/d
Q 2.585974197241536 5.8204e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2959  
   data-arc span      26164 days (71.63 yr)  
   first obs. used      1949-03-30  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40502  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:01:45  

Additional Information
 Earth MOID = .904625 au 
 Jupiter MOID = 2.47685 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 12.4   n/a MPO473786  
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. 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:
[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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