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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
97755 (2000 HN99)
Classification: Main-belt Asteroid          SPK-ID: 2097755
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0947003481466818 4.4188e-08  
a 2.767569009675249 1.9306e-08 au
q 2.505479260939036 1.2535e-07 au
i 16.48846436034167 5.4666e-06 deg
node 227.8846453164708 1.6856e-05 deg
peri 232.9467929977381 3.3735e-05 deg
M 148.7959097201023 2.8876e-05 deg
tp 2457905.420296194315
(2017-May-31.92029619)
0.00013424 TDB
period 1681.690671744593
4.60
1.7597e-05
4.818e-08
d
yr
n .2140702841780852 2.24e-09 deg/d
Q 3.029658758411462 2.1135e-08 au
  Orbit Determination Parameters
   # obs. used (total)      755  
   data-arc span      7097 days (19.43 yr)  
   first obs. used      1998-12-15  
   last obs. used      2018-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57994  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-31 15:47:00  

Additional Information
 Earth MOID = 1.55333 au 
 Jupiter MOID = 2.32518 au 
 T_jup = 3.272 
[ 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 14.5   n/a MPO348114  

97755 (2000 HN99)          Discovered 2000-Apr-26 by LONEOS at Anderson Mesa
Reference: 20050224/Numbers.arcLast Updated: 2005-02-28

Alternate Designations
 2000 HN99 = 2002 TR120 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin