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1663 van den Bos (1926 PE)
Classification: Main-belt Asteroid          SPK-ID: 2001663
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1792345245537985 4.9131e-08  
a 2.239548306381944 8.7888e-09 AU
q 1.838143930472312 1.0985e-07 AU
i 5.36402928802931 5.0317e-06 deg
node 83.27107328951136 5.894e-05 deg
peri 274.8938148906668 6.0561e-05 deg
M 40.64096842673435 1.5465e-05 deg
tp 2456662.302360223590
(2014-Jan-04.80236022)
5.2271e-05 JED
period 1224.162519876875
3.35
7.2061e-06
1.973e-08
d
yr
n .2940785999854076 1.7311e-09 deg/d
Q 2.640952682291577 1.0364e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1223  
   data-arc span      31171 days (85.34 yr)  
   first obs. used      1928-02-24  
   last obs. used      2013-06-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49086  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 17:33:03  

Additional Information
 Earth MOID = .842544 AU 
 T_jup = 3.609 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.8 mag n/a MPO265965  
diameter diameter 12.13 km 0.8 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3
rotation period rot_per 740. h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Published Reference List:
[Stephens, R.D.; Higgins, D. (2011) Minor Planet Bul. 38, 72.]
[Stephens, R.D. (2011) Minor Planet Bul. 38, 165-166.]
geometric albedo albedo 0.1584   0.024 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3

1663 van den Bos (1926 PE)          Discovered 1926-Aug-04 by Wood, H. E. at Johannesburg (UO)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1926 PE = 1928 DD = 1936 OM = 1948 BE = 1948 EG1 = 1949 KE = 1950 XD = 1963 SC 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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