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 ]  
312252 (2008 AB1)
Classification: Main-belt Asteroid          SPK-ID: 2312252
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07888312923693377 5.9113e-08  
a 2.662422189422604 2.6561e-08 au
q 2.452401995771101 1.5562e-07 au
i 14.45297454469856 5.721e-06 deg
node 102.7389507429961 2.5788e-05 deg
peri 48.71363217743452 4.6205e-05 deg
M 278.3268472637991 4.0931e-05 deg
tp 2459360.490162447019
(2021-May-25.99016245)
0.00018243 TDB
period 1586.76938674714
4.34
2.3745e-05
6.501e-08
d
yr
n .2268760684487342 3.3951e-09 deg/d
Q 2.872442383074108 2.8656e-08 au
  Orbit Determination Parameters
   # obs. used (total)      268  
   data-arc span      6231 days (17.06 yr)  
   first obs. used      2002-10-10  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57541  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 08:09:30  

Additional Information
 Earth MOID = 1.48823 au 
 Jupiter MOID = 2.23642 au 
 T_jup = 3.335 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457074.5 (2015-Feb-21.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07785142906310599 5.9484e-08  
q 2.455641343311205 1.5647e-07 au
tp 2457776.491872591047
(2017-Jan-22.99187259)
0.00017615 TDB
node 102.8118695014373 2.5809e-05 deg
peri 49.24108544683537 4.6477e-05 deg
i 14.44558356960818 5.7181e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      268  
   data-arc span      6231 days (17.06 yr)  
   first obs. used      2002-10-10  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57541  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 08:09:30  

Additional Information
 Jupiter MOID = 2.23642 au 
 T_jup = 3.335 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.538289939301212E-15 -9.194127906236964E-15 1.35521879663159E-12 2.484302713004552E-14 3.647364331206941E-13 -1.933794512114382E-15
q -9.194127906236964E-15 2.44822842077269E-14 -2.48479084328626E-12 -6.069657866139538E-14 -7.802607066313539E-13 8.434852775305257E-15
tp 1.35521879663159E-12 -2.48479084328626E-12 3.103031404492953E-8 7.812966719596674E-11 6.846721282783852E-9 2.192136487607833E-11
node 2.484302713004552E-14 -6.069657866139538E-14 7.812966719596674E-11 6.66102336967723E-10 -6.265530974068132E-10 -2.014094315298761E-12
peri 3.647364331206941E-13 -7.802607066313539E-13 6.846721282783852E-9 -6.265530974068132E-10 2.160097230780439E-9 6.466516354451068E-12
i -1.933794512114382E-15 8.434852775305257E-15 2.192136487607833E-11 -2.014094315298761E-12 6.466516354451068E-12 3.269705996507649E-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 16.2   n/a MPO455301  

312252 (2008 AB1)          Discovered 2008-Jan-01 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ 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
2151-Jun-15 08:13 00:04 Amphi 0.0269601605476415 0.0269490923838292 0.0269713839510987 6.10332573200764 6.10332569707076 2506861.842382915 4.22560721412331 3289.32847437698 56.3900906750851 80.3237434457291 70488.4382770461 T 17 CATAB v2.0f-lin.ifort 2019-Nov-08 08:09:36 2019-Nov-08 08:09

Alternate Designations
 2008 AB1 = 2004 EX18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-19 22:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin