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99913 (1997 CZ5)
Classification: Mars-crossing Asteroid          SPK-ID: 2099913
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3978457045417693 6.2078e-08  
a 2.292973168646265 4.8483e-09 au
q 1.380723642870818 1.4128e-07 au
i 24.95093083154295 8.8538e-06 deg
node 287.9525376317221 1.2263e-05 deg
peri 169.5095983801957 1.6875e-05 deg
M 261.0675082332635 9.4419e-06 deg
tp 2459349.024516150684
(2021-May-14.52451615)
3.4051e-05 TDB
period 1268.226682393458
3.47
4.0223e-06
1.101e-08
d
yr
n .2838609256513914 9.003e-10 deg/d
Q 3.205222694421712 6.7772e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1377  
   data-arc span      10229 days (28.01 yr)  
   first obs. used      1992-08-02  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41091  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 09:01:04  

Additional Information
 Earth MOID = .401585 au 
 Jupiter MOID = 1.99613 au 
 T_jup = 3.374 
[ 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 13.4   n/a MPO449608  
rotation period rot_per 2.833 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Higgins, D.; Pravec, P.; Kusnirak, P.; Hornock, K.; et al. (2011) CBET 2648.]
[Skiff, B.A. (2011) Posting on CALL web site. http://www.minorplanet.info/call.html]
[Skiff, B.A.; McLelland, K.P.; Sanborn, J.; Pravec, P.; Koehn, B.W. (2019). Minor Planet Bull. 46-4, in press.]
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

99913 (1997 CZ5)          Discovered 1997-Feb-07 by NEAT at Haleakala
Reference: 20050622/Numbers.arcLast Updated: 2005-06-27

[ show close-approach data ]
Alternate Designations
 1997 CZ5 = 1999 NQ54 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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