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JPL Small-Body Database Browser
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172805 (2004 FQ156)
Classification: Main-belt Asteroid          SPK-ID: 2172805
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 .1183939921345975 4.3421e-08  
a 3.011833586354618 2.4118e-08 au
q 2.655250584421033 1.2797e-07 au
i 2.908269482131763 5.4229e-06 deg
node 142.1733402201856 0.00011069 deg
peri 308.7563286773194 0.00011399 deg
M 113.1930777882129 2.6251e-05 deg
tp 2458400.208418400054
(2018-Oct-08.70841840)
0.00013793 TDB
period 1909.17124614562
5.23
2.2932e-05
6.278e-08
d
yr
n .1885634935717764 2.2649e-09 deg/d
Q 3.368416588288203 2.6973e-08 au
  Orbit Determination Parameters
   # obs. used (total)      388  
   data-arc span      6795 days (18.60 yr)  
   first obs. used      2001-09-18  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56166  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:21:33  

Additional Information
 Earth MOID = 1.67308 au 
 Jupiter MOID = 1.80979 au 
 T_jup = 3.237 
[ 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 15.7   n/a MPO436859  

172805 (2004 FQ156)          Discovered 2004-Mar-17 by Spacewatch at Kitt Peak
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1900-Oct-06 00:19 00:04 Jupiter 1.96300653148623 1.96300522166472 1.96300784130784 2.53946203928805 2.3634471710767 2415298.513132422 4.3086697221715 91.1397605543489 27.7019700395505 70.3223181867472 1843387.30499207 T 15 CATAB v2.0f-lin.ifort 2020-May-21 03:21:56 2020-May-21 03:22
1938-Jun-17 14:44 00:03 Jupiter 1.84116454172745 1.84116384086191 1.84116524259435 2.66500470532222 2.4863941285179 2429067.113604767 2.90933216797429 139.383920108773 11.2869240307187 88.4207474626881 2070919.23359178 T 15 CATAB v2.0f-lin.ifort 2020-May-21 03:21:56 2020-May-21 03:22
1985-Apr-12 18:28 00:01 Jupiter 1.82234666105955 1.8223462181863 1.8223471039326 2.37816006400211 2.17394800142541 2446168.269293697 1.14513904161704 69.5367320865214 6.81811424532407 -87.6765334921944 2346870.4123385 T 15 CATAB v2.0f-lin.ifort 2020-May-21 03:21:56 2020-May-21 03:22
2032-Feb-06 18:16 < 00:01 Jupiter 1.85326877174935 1.8532682727943 1.8532692707043 2.31414622872389 2.10741259624236 2463269.261247920 0.732053369493259 61.5443267692914 9.05215933793309 -85.6284793100771 2542081.45995122 T 15 CATAB v2.0f-lin.ifort 2020-May-21 03:21:56 2020-May-21 03:22
2069-Oct-17 16:24 00:02 Jupiter 1.91647436212253 1.91647358545875 1.91647513878728 3.23524230794665 3.09561860076585 2477037.183455837 2.10003206092282 119.17660614604 19.0363975599043 81.6167228186609 2198944.91156178 T 15 CATAB v2.0f-lin.ifort 2020-May-21 03:21:56 2020-May-21 03:22
2078-Dec-02 12:34 00:02 Jupiter 1.94271172087577 1.9427106689429 1.94271277280832 2.5067288982568 2.32630384038464 2480370.023790924 2.44390308748319 62.7581852316743 28.9738955296517 81.5330153222593 1652384.54210576 T 15 CATAB v2.0f-lin.ifort 2020-May-21 03:21:56 2020-May-21 03:22
2116-Aug-15 10:14 00:04 Jupiter 1.84050737818477 1.84050665259224 1.84050810378066 2.71852023812414 2.54360559898003 2494139.926637759 3.89799370078864 194.728808050252 12.3682199376291 88.9516508695911 2136269.27015223 T 15 CATAB v2.0f-lin.ifort 2020-May-21 03:21:56 2020-May-21 03:22
2163-Jun-11 18:15 00:06 Jupiter 1.80966242568909 1.80966196248845 1.80966288889075 2.39965515078215 2.1959585086217 2511241.260266246 5.69422490226042 226.471263195148 10.7862733678745 -82.6985212201262 2365751.32043036 T 15 CATAB v2.0f-lin.ifort 2020-May-21 03:21:56 2020-May-21 03:22

Alternate Designations
 2004 FQ156 = 2001 SK7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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