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 ]  
15423 (1998 QR91)
Classification: Main-belt Asteroid          SPK-ID: 2015423
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1955512154784399 3.4359e-08  
a 2.18774130382574 6.5153e-09 au
q 1.75992583271023 7.6329e-08 au
i .5863217432750646 3.0968e-06 deg
node 102.56262476 0.00039447 deg
peri 283.94472149 0.00039456 deg
M 245.3242330635213 1.0019e-05 deg
tp 2459376.997007572660
(2021-Jun-11.49700757)
3.3891e-05 TDB
period 1181.931687461356
3.24
5.2799e-06
1.446e-08
d
yr
n .3045861311775435 1.3606e-09 deg/d
Q 2.61555677494125 7.7894e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1386  
   data-arc span      13253 days (36.28 yr)  
   first obs. used      1984-03-05  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57401  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 17:49:47  

Additional Information
 Earth MOID = .764335 au 
 Jupiter MOID = 2.83245 au 
 T_jup = 3.650 
[ 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 15.4   n/a MPO309273  
diameter diameter 2.306 km 0.375 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.276   0.092 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15423 (1998 QR91)          Discovered 1998-Aug-28 by LINEAR at Socorro
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-24 04:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin