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 ]  
85658 (1998 QS28)
Classification: Main-belt Asteroid          SPK-ID: 2085658
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2062431798677625 7.1438e-08  
a 2.751063967266258 2.3549e-08 au
q 2.183675786637643 2.0035e-07 au
i 8.835398733853271 7.6978e-06 deg
node 301.297927423968 4.2797e-05 deg
peri 20.79247583609273 4.566e-05 deg
M 281.72081683544 2.0579e-05 deg
tp 2459362.904218420442
(2021-May-28.40421842)
9.8041e-05 TDB
period 1666.669392258374
4.56
2.14e-05
5.859e-08
d
yr
n .2159996467638924 2.7734e-09 deg/d
Q 3.318452147894873 2.8406e-08 au
  Orbit Determination Parameters
   # obs. used (total)      259  
   data-arc span      7949 days (21.76 yr)  
   first obs. used      1998-07-20  
   last obs. used      2020-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57693  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:39:27  

Additional Information
 Earth MOID = 1.17329 au 
 Jupiter MOID = 2.01085 au 
 T_jup = 3.297 
[ 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 15.7   n/a MPO432400  

85658 (1998 QS28)          Discovered 1998-Aug-22 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 QS28 = 2002 NX1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-23 19:54 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin