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6280 Sicardy (1980 RJ)
Classification: Main-belt Asteroid          SPK-ID: 2006280
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1440398650320981 9.7316e-09  
a 2.222397515570171 5.361e-09 au
q 1.902283677379773 2.403e-08 au
i 6.554679477712232 5.2353e-07 deg
node 354.326350158162 6.4947e-06 deg
peri 49.97874816465247 7.8492e-06 deg
M 3.052643407511169 6.1854e-06 deg
tp 2459190.238647286149
(2020-Dec-06.73864729)
2.0791e-05 TDB
period 1210.12725164584
3.31
4.3787e-06
1.199e-08
d
yr
n .2974893751961872 1.0764e-09 deg/d
Q 2.542511353760568 6.1332e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3223  
   data-arc span      24233 days (66.35 yr)  
   first obs. used      1954-11-04  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36151  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 18:31:18  

Additional Information
 Earth MOID = .91694 au 
 Jupiter MOID = 2.85688 au 
 T_jup = 3.626 
[ 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 13.57   n/a E2021B10  
diameter diameter 4.270 km 0.171 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.5384 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2017) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.435   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

6280 Sicardy (1980 RJ)          Discovered 1980-Sep-02 by Bowell, E. at Flagstaff
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1980 RJ = 1987 WH 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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