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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457337.5 (2015-Nov-11.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1451318404401259 9.7454e-09  
q 1.899647005784924 2.4064e-08 au
tp 2456769.347634253517
(2014-Apr-21.84763425)
2.2183e-05 TDB
node 354.4260473802057 6.4943e-06 deg
peri 49.73688517092053 7.8124e-06 deg
i 6.55623278094293 5.2386e-07 deg
  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
 Jupiter MOID = 2.85692 au 
 T_jup = 3.626 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.497323922052748E-17 -2.310751084366652E-16 1.376366954439145E-13 8.571020307963924E-15 2.360943096629039E-14 -3.55229372534471E-16
q -2.310751084366652E-16 5.790703390342824E-16 -3.442569098034755E-13 -2.068134757457379E-14 -5.818725335326909E-14 6.757580747996721E-16
tp 1.376366954439145E-13 -3.442569098034755E-13 4.921063050175929E-10 2.301694670064146E-11 9.995968408999188E-11 1.861406066185046E-12
node 8.571020307963924E-15 -2.068134757457379E-14 2.301694670064146E-11 4.217533558600399E-11 -3.590993058125989E-11 1.033286168815008E-12
peri 2.360943096629039E-14 -5.818725335326909E-14 9.995968408999188E-11 -3.590993058125989E-11 6.103360719616287E-11 -5.165071150769346E-13
i -3.55229372534471E-16 6.757580747996721E-16 1.861406066185046E-12 1.033286168815008E-12 -5.165071150769346E-13 2.74429168602089E-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 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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