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 ]  
85460 (1997 HG12)
Classification: Main-belt Asteroid          SPK-ID: 2085460
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1201305726013769 3.502e-08  
a 2.276869405766028 9.9112e-09 au
q 2.003347780312799 7.9053e-08 au
i 6.267674737064933 5.0899e-06 deg
node 205.5353544781032 3.6403e-05 deg
peri 65.0667106961681 4.2737e-05 deg
M 219.3879204419309 2.2096e-05 deg
tp 2459490.646312429266
(2021-Oct-03.14631243)
7.7163e-05 TDB
period 1254.889857465378
3.44
8.1938e-06
2.243e-08
d
yr
n .2868777668879456 1.8732e-09 deg/d
Q 2.550391031219258 1.1102e-08 au
  Orbit Determination Parameters
   # obs. used (total)      602  
   data-arc span      21622 days (59.20 yr)  
   first obs. used      1960-09-24  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58257  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 08:02:27  

Additional Information
 Earth MOID = .997172 au 
 Jupiter MOID = 2.52835 au 
 T_jup = 3.591 
[ 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 16.3   n/a MPO453285  

85460 (1997 HG12)          Discovered 1997-Apr-30 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1997 HG12 = 2001 QV204 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-04 23:16 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin