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21340 (1997 CS19)
Classification: Main-belt Asteroid          SPK-ID: 2021340
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1229246390209279 3.9215e-08  
a 2.472561886571242 8.7037e-09 au
q 2.168623109207568 9.7081e-08 au
i 5.382474244633476 3.917e-06 deg
node 77.38176932509256 4.2543e-05 deg
peri 135.6138430782684 4.4969e-05 deg
M 359.6477152526954 1.6217e-05 deg
tp 2459201.889666287850
(2020-Dec-18.38966629)
6.3975e-05 TDB
period 1420.100834492105
3.89
7.4984e-06
2.053e-08
d
yr
n .2535031254514776 1.3385e-09 deg/d
Q 2.776500663934917 9.7736e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1626  
   data-arc span      9127 days (24.99 yr)  
   first obs. used      1996-01-15  
   last obs. used      2021-01-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56649  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:43:40  

Additional Information
 Earth MOID = 1.16469 au 
 Jupiter MOID = 2.19412 au 
 T_jup = 3.467 
[ 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 14.55   n/a E2021B10  
rotation period rot_per 47.3929 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

21340 (1997 CS19)          Discovered 1997-Feb-11 by Kobayashi, T. at Oizumi
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 CS19 = 1999 XS27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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