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4724 Brocken (1961 BC)
Classification: Main-belt Asteroid          SPK-ID: 2004724
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1924530430581156 3.011e-08  
a 2.223449568232414 6.9311e-09 au
q 1.795539932739833 6.4793e-08 au
i 8.482200252773536 3.0693e-06 deg
node 94.59641935522522 2.8661e-05 deg
peri 193.7585364866761 3.091e-05 deg
M 124.5627237016776 1.2436e-05 deg
tp 2458581.489460456525
(2019-Apr-07.98946046)
4.16e-05 TDB
period 1210.986639927009
3.32
5.6624e-06
1.55e-08
d
yr
n .2972782590084549 1.39e-09 deg/d
Q 2.651359203724996 8.265e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2301  
   data-arc span      21565 days (59.04 yr)  
   first obs. used      1961-01-18  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44864  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:20:08  

Additional Information
 Earth MOID = .780362 au 
 Jupiter MOID = 2.51523 au 
 T_jup = 3.609 
[ 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 13.2   n/a MPO502198  
rotation period rot_per 5.912 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Klinglesmith III, D.A.; Risley, E.; Turk, J.; Vargas, A.; Warren, C. (2013) Minor Planet Bull. 40, 16-17.]

4724 Brocken (1961 BC)          Discovered 1961-Jan-18 by Hoffmeister-Schubart at Tautenburg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1961 BC = 1961 CE = 1982 HV1 = 1985 DO1 = 1986 VG5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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