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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .112048822905219 1.5123e-08  
a 2.244283669464225 5.0287e-09 au
q 1.992814326035353 3.3546e-08 au
i 3.5937182963861 5.4741e-07 deg
node 319.8350256823823 1.6457e-05 deg
peri 277.2231406068128 1.7361e-05 deg
M 1.755424824719518 7.9579e-06 deg
tp 2459390.511820835417
(2021-Jun-25.01182084)
2.7142e-05 TDB
period 1228.047176326377
3.36
4.1275e-06
1.13e-08
d
yr
n .2931483471806975 9.8528e-10 deg/d
Q 2.495753012893097 5.5922e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3241  
   data-arc span      26031 days (71.27 yr)  
   first obs. used      1950-03-21  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43929  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 21:53:36  

Additional Information
 Earth MOID = .985114 au 
 Jupiter MOID = 2.51128 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 13.34   n/a MPO614063  
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. 2020-October); 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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