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 ]  
185744 Hogan (1999 FK90)
Classification: Main-belt Asteroid          SPK-ID: 2185744
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2423340052361502 5.0529e-08  
a 2.884911625618988 1.8768e-08 au
q 2.185799436630406 1.4463e-07 au
i 13.49296052063369 4.5984e-06 deg
node 14.38667365550625 2.3529e-05 deg
peri 68.67903734343899 2.5559e-05 deg
M 195.6299939060416 1.0083e-05 deg
tp 2459817.679132757771
(2022-Aug-26.17913276)
5.4363e-05 TDB
period 1789.769890405879
4.90
1.7465e-05
4.782e-08
d
yr
n .2011431759634531 1.9628e-09 deg/d
Q 3.584023814607571 2.3316e-08 au
  Orbit Determination Parameters
   # obs. used (total)      340  
   data-arc span      9189 days (25.16 yr)  
   first obs. used      1994-04-03  
   last obs. used      2019-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57147  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 20:09:21  

Additional Information
 Earth MOID = 1.24178 au 
 Jupiter MOID = 1.94924 au 
 T_jup = 3.209 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457393.5 (2016-Jan-06.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2450909296121434 5.0709e-08  
q 2.173389194696051 1.4544e-07 au
tp 2458028.618912137769
(2017-Oct-02.11891214)
4.5488e-05 TDB
node 14.56853081623463 2.3488e-05 deg
peri 68.24008243843554 2.5436e-05 deg
i 13.52223678356037 4.6048e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      340  
   data-arc span      9189 days (25.16 yr)  
   first obs. used      1994-04-03  
   last obs. used      2019-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57147  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 20:09:21  

Additional Information
 Jupiter MOID = 1.94924 au 
 T_jup = 3.209 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.571381657349181E-15 -7.340068909616742E-15 3.751380359170917E-13 -1.086428561709767E-14 -2.573180727432191E-16 -2.00952440977273E-14
q -7.340068909616742E-15 2.115226102004267E-14 -9.084603525171597E-13 3.181009046313094E-14 1.505418986653479E-14 5.739048246733915E-14
tp 3.751380359170917E-13 -9.084603525171597E-13 2.069197515258983E-9 7.747389147407122E-12 4.715004417939981E-10 -1.032900693559933E-11
node -1.086428561709767E-14 3.181009046313094E-14 7.747389147407122E-12 5.516648587039495E-10 -5.338076294632533E-10 6.622940791059054E-12
peri -2.573180727432191E-16 1.505418986653479E-14 4.715004417939981E-10 -5.338076294632533E-10 6.470152810802762E-10 -8.016194598950409E-12
i -2.00952440977273E-14 5.739048246733915E-14 -1.032900693559933E-11 6.622940791059054E-12 -8.016194598950409E-12 2.120457928131922E-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 15.7   n/a MPO475564  

185744 Hogan           Discovered 1999 Mar. 21 by the Sloan Digital Sky Survey at Apache Point.
Craig Hogan (b. 1955), is an American astrophysicist and a contributor to the Sloan Digital Sky Survey.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-01-16Last Updated: 2014-01-21

[ show close-approach data ]
Alternate Designations
 1999 FK90 = 2004 HT6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jun-06 21:33 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin