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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1793114581429351 4.4496e-08  
a 2.240368073691772 8.0619e-09 AU
q 1.838644407621222 9.8065e-08 AU
i 5.362983526691663 4.645e-06 deg
node 83.26805201571823 5.2699e-05 deg
peri 275.0087955904952 5.4468e-05 deg
M 99.32407989450488 1.5556e-05 deg
tp 2456662.567828221044
(2014-Jan-05.06782822)
5.2173e-05 JED
period 1224.834722553064
3.35
6.6113e-06
1.81e-08
d
yr
n .2939172064371351 1.5865e-09 deg/d
Q 2.642091739762323 9.5075e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      1378  
   data-arc span      31776 days (87.00 yr)  
   first obs. used      1928-02-24  
   last obs. used      2015-02-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47491  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 13:37:17  

Additional Information
 Earth MOID = .844582 AU 
 T_jup = 3.608 
[ 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 LCDB (Rev. 2015-Feb); Warner et al., 2009 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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