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

Significant website upgrade scheduled for September 27. More details available here.

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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2065668155969856 5.8392e-08  
a 2.752775381407905 2.0468e-08 au
q 2.184143336816696 1.6721e-07 au
i 8.833694623448277 6.1944e-06 deg
node 301.2958452893538 4.1677e-05 deg
peri 20.6019445786966 4.4238e-05 deg
M 7.379398899845557 1.8138e-05 deg
tp 2459362.304175720361
(2021-May-27.80417572)
8.3867e-05 TDB
period 1668.224865974884
4.57
1.8606e-05
5.094e-08
d
yr
n .2157982459934271 2.4068e-09 deg/d
Q 3.321407425999113 2.4696e-08 au
  Orbit Determination Parameters
   # obs. used (total)      320  
   data-arc span      8421 days (23.06 yr)  
   first obs. used      1998-07-20  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54497  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 01:54:12  

Additional Information
 Earth MOID = 1.17301 au 
 Jupiter MOID = 2.00651 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 15.65   n/a MPO637175  

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 2021-Sep-26 19:32 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin