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 ]  
146867 (2002 AC176)
Classification: Main-belt Asteroid          SPK-ID: 2146867
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06713099474409034 4.7991e-08  
a 3.048214150229408 2.3512e-08 au
q 2.843584502131496 1.3855e-07 au
i 2.535762011000517 4.9781e-06 deg
node 316.4995429245157 9.8993e-05 deg
peri 234.601065518358 0.00010468 deg
M 106.4627909870096 3.3695e-05 deg
tp 2458425.640138929377
(2018-Nov-03.14013893)
0.00018221 TDB
period 1943.867411954999
5.32
2.2491e-05
6.158e-08
d
yr
n .1851978163664663 2.1428e-09 deg/d
Q 3.252843798327321 2.5091e-08 au
  Orbit Determination Parameters
   # obs. used (total)      458  
   data-arc span      9553 days (26.15 yr)  
   first obs. used      1994-09-12  
   last obs. used      2020-11-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55962  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:55:01  

Additional Information
 Earth MOID = 1.84444 au 
 Jupiter MOID = 1.71821 au 
 T_jup = 3.233 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457299.5 (2015-Oct-04.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06433083003412733 4.8176e-08  
q 2.850842017783045 1.3812e-07 au
tp 2456478.842225305896
(2013-Jul-05.34222531)
0.00019151 TDB
node 316.6765395208519 9.9322e-05 deg
peri 233.6683148444248 0.00010543 deg
i 2.531459766138669 4.9704e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      458  
   data-arc span      9553 days (26.15 yr)  
   first obs. used      1994-09-12  
   last obs. used      2020-11-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55962  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:55:01  

Additional Information
 Jupiter MOID = 1.71821 au 
 T_jup = 3.233 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.320934800678186E-15 -6.588257159469375E-15 -1.768122196848836E-12 -8.628214118111866E-15 -2.963010445635522E-13 4.482216616202879E-17
q -6.588257159469375E-15 1.90764062476464E-14 4.742933077205568E-12 2.129089601937703E-14 8.213116569057349E-13 6.358707685970969E-16
tp -1.768122196848836E-12 4.742933077205568E-12 3.667494567157828E-8 4.533054778076182E-11 6.786688831805118E-9 -1.490078467652367E-12
node -8.628214118111866E-15 2.129089601937703E-14 4.533054778076182E-11 9.864787776719762E-9 -9.846966349446731E-9 5.64897462802426E-11
peri -2.963010445635522E-13 8.213116569057349E-13 6.786688831805118E-9 -9.846966349446731E-9 1.111515158842395E-8 -5.661664236186461E-11
i 4.482216616202879E-17 6.358707685970969E-16 -1.490078467652367E-12 5.64897462802426E-11 -5.661664236186461E-11 2.470446396865615E-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 15.4   n/a MPO260126  
diameter diameter 6.250 km 1.652 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.029   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

146867 (2002 AC176)          Discovered 2002-Jan-14 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

[ show close-approach data ]
Alternate Designations
 2002 AC176 = 1994 RW9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-20 07:49 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin