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 ]  
74541 (1999 JT22)
Classification: Main-belt Asteroid          SPK-ID: 2074541
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1150518333580383 4.576e-08  
a 3.136988072565141 2.3475e-08 au
q 2.776071843594222 1.4508e-07 au
i 2.253760591134516 4.0506e-06 deg
node 251.4007701372014 0.00013276 deg
peri 258.3187426986079 0.00013396 deg
M 343.8824992276933 1.9618e-05 deg
tp 2459091.357948578166
(2020-Aug-29.85794858)
0.00011096 TDB
period 2029.400336331335
5.56
2.278e-05
6.237e-08
d
yr
n .1773923033100472 1.9912e-09 deg/d
Q 3.497904301536059 2.6176e-08 au
  Orbit Determination Parameters
   # obs. used (total)      970  
   data-arc span      7598 days (20.80 yr)  
   first obs. used      1999-04-15  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5364  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:18:40  

Additional Information
 Earth MOID = 1.78837 au 
 Jupiter MOID = 1.51944 au 
 T_jup = 3.200 
[ 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 14.4   n/a MPO468692  
diameter diameter 8.998 km 0.159 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.026   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74541 (1999 JT22)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-07 09:32 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin