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1741 Giclas (1960 BC)
Classification: Main-belt Asteroid          SPK-ID: 2001741
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06929659849608281 1.9825e-08  
a 2.886835391953912 9.4534e-09 au
q 2.6867875188734 6.1316e-08 au
i 2.885143328717316 5.1762e-07 deg
node 55.48623648507755 5.7486e-06 deg
peri 337.6019797247225 1.2429e-05 deg
M 260.4759931569414 1.2756e-05 deg
tp 2459695.786864304735
(2022-Apr-26.28686430)
6.4477e-05 TDB
period 1791.560416481972
4.91
8.8001e-06
2.409e-08
d
yr
n .2009421489155918 9.8703e-10 deg/d
Q 3.086883265034424 1.0109e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3212  
   data-arc span      24632 days (67.44 yr)  
   first obs. used      1953-10-13  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42665  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:43:14  

Additional Information
 Earth MOID = 1.69187 au 
 Jupiter MOID = 2.23168 au 
 T_jup = 3.287 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456593.5 (2013-Oct-28.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07069467449396569 1.9724e-08  
q 2.680446090797566 6.1329e-08 au
tp 2456128.259551732151
(2012-Jul-19.75955173)
5.9713e-05 TDB
node 55.53399635018095 5.7412e-06 deg
peri 339.7467266322919 1.246e-05 deg
i 2.887983883116473 5.1809e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3212  
   data-arc span      24632 days (67.44 yr)  
   first obs. used      1953-10-13  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42665  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:43:14  

Additional Information
 Jupiter MOID = 2.23168 au 
 T_jup = 3.287 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.890421858811384E-16 -1.198919882836047E-15 -5.808941743313247E-13 -9.265791858281826E-15 -8.323034901564564E-14 -4.622309403573257E-16
q -1.198919882836047E-15 3.76118907608393E-15 1.77299488997266E-12 2.781135099516015E-14 2.613263626452E-13 1.06955482597196E-15
tp -5.808941743313247E-13 1.77299488997266E-12 3.565625353218867E-9 -1.887296567131454E-11 6.51939870530038E-10 -7.72165923497256E-12
node -9.265791858281826E-15 2.781135099516015E-14 -1.887296567131454E-11 3.296150054916283E-11 -3.714343882383532E-11 1.103887034961401E-12
peri -8.323034901564564E-14 2.613263626452E-13 6.51939870530038E-10 -3.714343882383532E-11 1.552535178172839E-10 -2.604317705950633E-12
i -4.622309403573257E-16 1.06955482597196E-15 -7.72165923497256E-12 1.103887034961401E-12 -2.604317705950633E-12 2.684150183991172E-13

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.55   n/a E2021B10  
diameter diameter 13.107 km 0.182 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 2.943 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Slivan, S.M.; Binzel, R.P.; Boroumand, S.C.; Pan M.W.; et al. (2008) Icarus 195, 226-276.]
[Warner, B.D. (2008) Minor Planet Bull. 35, 67-71.]
[Oey, J.; Williams, H.; Groom, R.; Pray, D.; Benishek, V. (2017) Minor Planet Bull. 44, 193-199.]
[Oey, J.; Groom, R. (2018) Minor Planet Bull. 45, 363-366.]
[Pravec, P.; Fatka, P.; Vokrouhlický, D.; Scheirich, P.; et al. (2019) Icarus 333, 429-463.]
geometric albedo albedo 0.374   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

1741 Giclas (1960 BC)          Discovered 1960-Jan-26 by Goethe Link Observatory at Brooklyn
Discovered by the Indiana Asteroid Program, Goethe Link Observatory, University of Indiana. This program was conceived and directed by F. K. Edmondson; the plates were blinked and measured astrometrically by B. Potter and, following her retirement, by D. Owings; and the photometry was performed under the direction of T. Gehrels. During the years 1947-1967, in which the plates were exposed, a large number of people participated in various aspects of the program.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1960 BC = 1953 UY = 1953 VH1 = 1953 XN = 1963 YD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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