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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2403274108362146 4.9922e-08  
a 2.885998276163456 2.02e-08 au
q 2.192413782775315 1.4158e-07 au
i 13.51325492147547 4.6004e-06 deg
node 14.03924951031029 2.3462e-05 deg
peri 69.19728763281574 2.5647e-05 deg
M 274.825674922319 1.0657e-05 deg
tp 2459820.190501636873
(2022-Aug-28.69050164)
5.5189e-05 TDB
period 1790.781206075477
4.90
1.8802e-05
5.148e-08
d
yr
n .201029583501686 2.1106e-09 deg/d
Q 3.579582769551598 2.5055e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57138  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:48:24  

Additional Information
 Earth MOID = 1.24867 au 
 Jupiter MOID = 1.95328 au 
 T_jup = 3.209 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457393.5 (2016-Jan-06.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2450909279798296 5.0709e-08  
q 2.173389198755941 1.4544e-07 au
tp 2458028.618912570921
(2017-Oct-02.11891257)
4.5488e-05 TDB
node 14.56853069680723 2.3488e-05 deg
peri 68.24008253860033 2.5436e-05 deg
i 13.52223685074497 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57138  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:48:24  

Additional Information
 Jupiter MOID = 1.95328 au 
 T_jup = 3.209 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.57138238197567E-15 -7.340071069983197E-15 3.751382061815342E-13 -1.086429959223105E-14 -2.572835444348419E-16 -2.009524776144668E-14
q -7.340071069983197E-15 2.115226677730208E-14 -9.084615120275347E-13 3.181013177329294E-14 1.505392733514673E-14 5.739049426577703E-14
tp 3.751382061815342E-13 -9.084615120275347E-13 2.069197174291256E-9 7.747383461228312E-12 4.715003575046454E-10 -1.0329008451706E-11
node -1.086429959223105E-14 3.181013177329294E-14 7.747383461228312E-12 5.516648584618427E-10 -5.338076312331184E-10 6.622939983501239E-12
peri -2.572835444348419E-16 1.505392733514673E-14 4.715003575046454E-10 -5.338076312331184E-10 6.470152607273047E-10 -8.016194297672854E-12
i -2.009524776144668E-14 5.739049426577703E-14 -1.0329008451706E-11 6.622939983501239E-12 -8.016194297672854E-12 2.120457913015079E-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 ]
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