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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
74464 (1999 CA38)
Classification: Main-belt Asteroid          SPK-ID: 2074464
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .214774755270691 4.4786e-08  
a 3.073346270169914 2.1672e-08 au
q 2.41326907713208 1.4371e-07 au
i 2.793716604531057 4.8753e-06 deg
node 137.5330210000119 9.9778e-05 deg
peri 355.8261929696439 0.00010053 deg
M 277.8862855818796 1.2027e-05 deg
tp 2459049.378563296719
(2020-Jul-18.87856330)
6.8116e-05 TDB
period 1967.95728864457
5.39
2.0816e-05
5.699e-08
d
yr
n .1829307994016221 1.9349e-09 deg/d
Q 3.733423463207748 2.6327e-08 au
  Orbit Determination Parameters
   # obs. used (total)      702  
   data-arc span      11618 days (31.81 yr)  
   first obs. used      1988-02-15  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51139  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:25:53  

Additional Information
 Earth MOID = 1.42802 au 
 Jupiter MOID = 1.31982 au 
 T_jup = 3.192 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456906.5 (2014-Sep-06.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2155820649783577 4.4885e-08  
q 2.409986101414451 1.4421e-07 au
tp 2457084.369028306062
(2015-Mar-02.86902831)
5.9492e-05 TDB
node 137.5424087388903 9.977e-05 deg
peri 356.2317179015774 0.00010051 deg
i 2.793654687921165 4.8772e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      702  
   data-arc span      11618 days (31.81 yr)  
   first obs. used      1988-02-15  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51139  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:25:53  

Additional Information
 Jupiter MOID = 1.31982 au 
 T_jup = 3.192 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.014673794379232E-15 -6.432270267860047E-15 7.267593630833946E-14 -1.111305089962981E-14 7.527548235702435E-14 -6.871290879569767E-16
q -6.432270267860047E-15 2.079744819274577E-14 1.202730787524479E-14 3.564966673636993E-14 -1.98652171278805E-13 2.363992938149067E-15
tp 7.267593630833946E-14 1.202730787524479E-14 3.53931895970983E-9 -2.543197092350667E-12 7.483521101052743E-10 7.720183350264764E-13
node -1.111305089962981E-14 3.564966673636993E-14 -2.543197092350667E-12 9.953980803042069E-9 -9.942264303522192E-9 3.611956252681089E-11
peri 7.527548235702435E-14 -1.98652171278805E-13 7.483521101052743E-10 -9.942264303522192E-9 1.01016925883318E-8 -3.591471712261056E-11
i -6.871290879569767E-16 2.363992938149067E-15 7.720183350264764E-13 3.611956252681089E-11 -3.591471712261056E-11 2.378737739119414E-11

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 15.0   n/a MPO417340  
diameter diameter 5.914 km 0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.62 h n/a LCDB (Rev. 2019-January); 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:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
geometric albedo albedo 0.055   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74464 (1999 CA38)          Discovered 1999-Feb-10 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 CA38 = 1988 CS7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-25 17:09 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin