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 ]  
27605 (2001 HN9)
Classification: Main-belt Asteroid          SPK-ID: 2027605
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08345915732750572 3.8143e-08  
a 2.986865337960909 2.0203e-08 au
q 2.737584073803956 1.1268e-07 au
i 11.88808199768867 4.959e-06 deg
node 68.93714599815655 2.3071e-05 deg
peri 223.591428721152 4.4804e-05 deg
M 193.0460673299127 4.1408e-05 deg
tp 2459874.911869260641
(2022-Oct-22.41186926)
0.00021941 TDB
period 1885.479832067655
5.16
1.913e-05
5.238e-08
d
yr
n .1909328298702706 1.9372e-09 deg/d
Q 3.236146602117862 2.1889e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1344  
   data-arc span      8630 days (23.63 yr)  
   first obs. used      1996-06-13  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49444  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 01:07:04  

Additional Information
 Earth MOID = 1.73478 au 
 Jupiter MOID = 1.90007 au 
 T_jup = 3.220 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456812.5 (2014-Jun-04.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08570029193767095 3.86e-08  
q 2.728719098801141 1.1445e-07 au
tp 2456093.975738188877
(2012-Jun-15.47573819)
0.00020257 TDB
node 69.18928960111992 2.3054e-05 deg
peri 221.4281635631619 4.3607e-05 deg
i 11.89836636856316 4.9592e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1344  
   data-arc span      8630 days (23.63 yr)  
   first obs. used      1996-06-13  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49444  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 01:07:04  

Additional Information
 Jupiter MOID = 1.90007 au 
 T_jup = 3.220 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.489934433299785E-15 -4.361289859442941E-15 -2.927100024211536E-13 -7.014939302506085E-16 -4.537543578527772E-14 6.200634604812219E-16
q -4.361289859442941E-15 1.30988754845837E-14 1.525710001165499E-12 1.422297995405991E-15 2.773654626435454E-13 -5.268634810185974E-16
tp -2.927100024211536E-13 1.525710001165499E-12 4.103426243295255E-8 4.315866465122231E-12 7.527515546260449E-9 1.893473389807069E-11
node -7.014939302506085E-16 1.422297995405991E-15 4.315866465122231E-12 5.314914922605358E-10 -5.185781821246002E-10 -2.298363078980542E-11
peri -4.537543578527772E-14 2.773654626435454E-13 7.527515546260449E-9 -5.185781821246002E-10 1.901594592428791E-9 2.595904713506644E-11
i 6.200634604812219E-16 -5.268634810185974E-16 1.893473389807069E-11 -2.298363078980542E-11 2.595904713506644E-11 2.459328713314093E-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 13.5   n/a MPO412382  
diameter diameter 6.218 km 0.249 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.240   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27605 (2001 HN9)          Discovered 2001-Apr-16 by LINEAR at Socorro
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 HN9 = 1998 XG68 = 2000 EG116 
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-02 13:57 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin