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JPL Small-Body Database Browser
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2691 Sersic (1974 KB)
Classification: Main-belt Asteroid          SPK-ID: 2002691
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1124483044144286 2.8812e-08  
a 2.244400764526466 6.8e-09 au
q 1.992021704129018 6.3921e-08 au
i 3.593488464858911 3.7682e-06 deg
node 319.8459777493754 5.1779e-05 deg
peri 277.0370792177525 5.5071e-05 deg
M 128.6575897442935 2.0116e-05 deg
tp 2458161.583457778277
(2018-Feb-12.08345778)
6.8253e-05 TDB
period 1228.143287262451
3.36
5.5814e-06
1.528e-08
d
yr
n .2931254062402158 1.3321e-09 deg/d
Q 2.496779824923914 7.5646e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2616  
   data-arc span      25463 days (69.71 yr)  
   first obs. used      1950-03-21  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46105  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:19:07  

Additional Information
 Earth MOID = .983942 au 
 Jupiter MOID = 2.51289 au 
 T_jup = 3.621 
[ 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 13.2   n/a MPO439090  
diameter diameter 5.438 km 0.119 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.8811 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Oey, J.; Pravec, P.; Kusnirak, P.; Morales, N.; et al. (2011) CBET 2766.]
[Oey, J. (2016) Minor Planet Bull. 43, 45-51.]
geometric albedo albedo 0.261   0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2691 Sersic (1974 KB)          Discovered 1974-May-18 by Felix Aguilar Observatory at El Leoncito
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1974 KB = 1938 UU = 1978 QR1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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