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JPL Small-Body Database Browser
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3918 Brel (1988 PE1)
Classification: Main-belt Asteroid          SPK-ID: 2003918
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2085328060014702 3.9146e-08  
a 2.244170836272692 5.8575e-09 au
q 1.776187594638082 8.7091e-08 au
i 7.510752839063691 4.0523e-06 deg
node 160.6341185926271 2.4071e-05 deg
peri 203.0620511714274 2.5142e-05 deg
M 147.708888412611 8.4759e-06 deg
tp 2458496.667211257160
(2019-Jan-13.16721126)
2.8027e-05 TDB
period 1227.954565880658
3.36
4.8076e-06
1.316e-08
d
yr
n .2931704559784074 1.1478e-09 deg/d
Q 2.712154077907303 7.0789e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2450  
   data-arc span      32235 days (88.25 yr)  
   first obs. used      1931-11-04  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43719  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:59:22  

Additional Information
 Earth MOID = .775937 au 
 Jupiter MOID = 2.74499 au 
 T_jup = 3.592 
[ 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 12.7   n/a MPO350832  
diameter diameter 6.262 km 0.129 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.0980 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2005) http://www.asu.cas.cz/~ppravec/neo.htm]
[Pravec, P.; Wolf, M.; Sarounova, L. (2007) http://www.asu.cas.cz/~ppravec/neo.htm]
[Dykhuis, M.J.; Molnar, L.A.; Gates, C.J.; Gonzales, J.A.; et al. (2016) Icarus 267, 174-203.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
geometric albedo albedo 0.289   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3918 Brel (1988 PE1)          Discovered 1988-Aug-13 by Elst, E. W. and Sause, G. at Haute Provence
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1988 PE1 = 1931 VF1 = 1951 RX1 = 1968 UN3 = 1971 OK = 1978 TE4 = 1980 DQ4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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