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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1441667385415482 9.7333e-09  
a 2.22275514552965 5.3592e-09 au
q 1.902307785622196 2.4037e-08 au
i 6.554683990024285 5.2347e-07 deg
node 354.3234759448432 6.4941e-06 deg
peri 50.00848882263396 7.8435e-06 deg
M 61.3238940536047 6.1785e-06 deg
tp 2459190.312141886833
(2020-Dec-06.81214189)
2.0748e-05 TDB
period 1210.419365343236
3.31
4.3776e-06
1.199e-08
d
yr
n .2974175813007713 1.0756e-09 deg/d
Q 2.543202505437104 6.1318e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3277  
   data-arc span      24284 days (66.49 yr)  
   first obs. used      1954-11-04  
   last obs. used      2021-04-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36244  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 15:02:57  

Additional Information
 Earth MOID = .917384 au 
 Jupiter MOID = 2.85692 au 
 T_jup = 3.626 
[ 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 13.57   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

Alternate Designations
 1980 RJ = 1987 WH 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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