Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
74442 (1999 CJ9)
Classification: Main-belt Asteroid          SPK-ID: 2074442
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .170374574867908 3.8595e-08  
a 3.148669999254836 2.1011e-08 au
q 2.612216686732457 1.246e-07 au
i 1.610249479405259 4.658e-06 deg
node 55.64965121778158 0.00015472 deg
peri 84.79255724918293 0.00015545 deg
M 294.951721987056 1.6187e-05 deg
tp 2459369.241866432870
(2021-Jun-03.74186643)
9.3787e-05 TDB
period 2040.746903237284
5.59
2.0427e-05
5.593e-08
d
yr
n .1764060008759164 1.7657e-09 deg/d
Q 3.685123311777215 2.4591e-08 au
  Orbit Determination Parameters
   # obs. used (total)      873  
   data-arc span      8184 days (22.41 yr)  
   first obs. used      1997-09-07  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51084  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:16:16  

Additional Information
 Earth MOID = 1.62594 au 
 Jupiter MOID = 1.34132 au 
 T_jup = 3.185 
[ 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 14.5   n/a MPO453157  
diameter diameter 6.142 km 0.207 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.068   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74442 (1999 CJ9)          Discovered 1999-Feb-08 by Kawasato, N. at Uenohara
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 CJ9 = 2000 KT21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-05 11:43 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin