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 ]  
15253 (1990 QA4)
Classification: Main-belt Asteroid          SPK-ID: 2015253
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04417294271422162 3.0068e-08  
a 2.324004914427072 8.0165e-09 au
q 2.221346778474515 6.9718e-08 au
i 4.864484231313859 3.4552e-06 deg
node 337.9494996996985 3.7539e-05 deg
peri 253.5245563558116 5.4318e-05 deg
M 301.0559825538537 4.0149e-05 deg
tp 2459412.380613598759
(2021-Jul-16.88061360)
0.00014448 TDB
period 1294.058739128922
3.54
6.6956e-06
1.833e-08
d
yr
n .2781944815289676 1.4394e-09 deg/d
Q 2.426663050379628 8.3706e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1777  
   data-arc span      11169 days (30.58 yr)  
   first obs. used      1990-08-16  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49484  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:52:54  

Additional Information
 Earth MOID = 1.2153 au 
 Jupiter MOID = 2.5596 au 
 T_jup = 3.569 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.45   n/a E2021B10  
diameter diameter 7.097 km 0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15253 (1990 QA4)          Discovered 1990-Aug-23 by Holt, H. E. at Palomar
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 QA4 = 1991 YM2 = 1998 XQ46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-22 18:52 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin