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 ]  
181021 (2005 NQ97)
Classification: Main-belt Asteroid          SPK-ID: 2181021
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06076782951415511 6.2427e-08  
a 2.8107107372143 2.4171e-08 au
q 2.639909946321656 1.6951e-07 au
i 4.465999543343046 5.4196e-06 deg
node 282.9359355162661 9.4571e-05 deg
peri 57.63923057320283 0.00011317 deg
M 61.07037585178387 5.8671e-05 deg
tp 2458908.521584100416
(2020-Feb-29.02158410)
0.00028076 TDB
period 1721.165593919954
4.71
2.2202e-05
6.079e-08
d
yr
n .2091605835439111 2.698e-09 deg/d
Q 2.981511528106944 2.5639e-08 au
  Orbit Determination Parameters
   # obs. used (total)      310  
   data-arc span      7039 days (19.27 yr)  
   first obs. used      2001-10-24  
   last obs. used      2021-01-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42847  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:28:54  

Additional Information
 Earth MOID = 1.63219 au 
 Jupiter MOID = 2.26941 au 
 T_jup = 3.314 
[ 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 16.36   n/a MPCxxxxx  

181021 (2005 NQ97)          Discovered 2005-Jul-09 by Spacewatch at Kitt Peak
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

[ 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 2021-May-17 17:54 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin