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 ]  
300262 (2007 HQ31)
Classification: Main-belt Asteroid          SPK-ID: 2300262
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09492994650747774 6.8173e-08  
a 2.18178478805417 2.1192e-08 au
q 1.974668074833359 1.4125e-07 au
i 3.60179887468763 8.9257e-06 deg
node 20.18356818216055 0.00015225 deg
peri 216.9078214583082 0.00016792 deg
M 6.801252007186294 7.074e-05 deg
tp 2458978.261645074607
(2020-May-08.76164507)
0.00023121 TDB
period 1177.107944931654
3.22
1.715e-05
4.695e-08
d
yr
n .3058343132845838 4.456e-09 deg/d
Q 2.388901501274981 2.3204e-08 au
  Orbit Determination Parameters
   # obs. used (total)      114  
   data-arc span      8981 days (24.59 yr)  
   first obs. used      1995-09-22  
   last obs. used      2020-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48444  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 19:36:20  

Additional Information
 Earth MOID = .964374 au 
 Jupiter MOID = 2.60345 au 
 T_jup = 3.672 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456232.5 (2012-Nov-01.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09472793506552062 6.8075e-08  
q 1.975158462100746 1.4068e-07 au
tp 2456624.033214993854
(2013-Nov-27.53321499)
0.0002244 TDB
node 20.21558645682359 0.00015223 deg
peri 216.8522139949436 0.00016802 deg
i 3.602502904979824 8.9262e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      114  
   data-arc span      8981 days (24.59 yr)  
   first obs. used      1995-09-22  
   last obs. used      2020-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48444  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 19:36:20  

Additional Information
 Jupiter MOID = 2.60345 au 
 T_jup = 3.672 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.634174584518595E-15 -9.504172652910902E-15 -4.927989505771891E-12 -2.888878048684833E-16 -1.827142261070392E-12 6.146844660386967E-15
q -9.504172652910902E-15 1.979223957759664E-14 1.133049369190945E-11 1.702482337235895E-15 4.099966930114099E-12 -1.391326574895425E-14
tp -4.927989505771891E-12 1.133049369190945E-11 5.035470762290712E-8 9.889174067129652E-13 1.602901489928768E-8 -5.342130680491476E-11
node -2.888878048684833E-16 1.702482337235895E-15 9.889174067129652E-13 2.317356582987939E-8 -2.312760753839216E-8 -8.625901870303821E-10
peri -1.827142261070392E-12 4.099966930114099E-12 1.602901489928768E-8 -2.312760753839216E-8 2.823031039483721E-8 8.441276327261837E-10
i 6.146844660386967E-15 -1.391326574895425E-14 -5.342130680491476E-11 -8.625901870303821E-10 8.441276327261837E-10 7.967669440819627E-11

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 18.1   n/a MPO471162  

300262 (2007 HQ31)          Discovered 2007-Apr-19 by Spacewatch at Kitt Peak
Reference: 20111012/Numbers.arcLast Updated: 2011-10-13

[ show close-approach data ]
Alternate Designations
 2007 HQ31 = 1995 SX81 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-08 15:41 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin