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 ]  
52421 Daihoji (1994 LA)
Classification: Main-belt Asteroid          SPK-ID: 2052421
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1825145343363579 5.103e-08  
a 3.124566309518253 2.5265e-08 au
q 2.554287544533457 1.6321e-07 au
i 22.23350121509525 5.4737e-06 deg
node 94.73539615789522 1.5297e-05 deg
peri 255.7154226079412 2.0645e-05 deg
M 172.4042961942922 1.5493e-05 deg
tp 2458034.385437081000
(2017-Oct-07.88543708)
8.3502e-05 TDB
period 2017.358327653756
5.52
2.4469e-05
6.699e-08
d
yr
n .1784511928620485 2.1644e-09 deg/d
Q 3.694845074503049 2.9877e-08 au
  Orbit Determination Parameters
   # obs. used (total)      805  
   data-arc span      9482 days (25.96 yr)  
   first obs. used      1994-06-01  
   last obs. used      2020-05-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56292  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:17:50  

Additional Information
 Earth MOID = 1.64822 au 
 Jupiter MOID = 1.94298 au 
 T_jup = 3.076 
[ 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 14.0   n/a MPO319706  
diameter diameter 9.622 km 0.184 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 22.5465 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.053   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52421 Daihoji           Discovered 1994 June 1 by A. Nakamura at Kuma Kogen.
Daihoji, located in the north of the town of Kuma Kogen, was founded in 701 following an order by the Emperor Monmu. Since the visit of the Buddhist priest Kobo Daishi in early ninth century, Daihoji has been the 44th destination for the Shikoku pilgrimage.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050407/MPCPages.arcLast Updated: 2005-04-15

[ 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
1930-Sep-29 01:41 00:03 Jupiter 1.93810942653379 1.93810853581353 1.93811031726704 6.13048765554531 6.05877941541563 2426248.569871396 2.62176629821312 342.58182900703 29.3507639390602 84.660573183305 3738202.12059267 T 25 CATAB v2.0f-lin.ifort 2020-Nov-12 23:17:52 2020-Nov-12 23:17
2013-Jul-30 12:31 < 00:01 Jupiter 1.98197428570108 1.981973768404 1.98197480299828 6.25174474905116 6.18300787382514 2456504.021714324 0.250307479582837 109.928136419923 24.1551467652793 -85.9984671688583 3980550.11768622 T 25 CATAB v2.0f-lin.ifort 2020-Nov-12 23:17:52 2020-Nov-12 23:17
2168-Sep-21 02:37 00:05 Jupiter 1.97867296750187 1.97867133521634 1.97867459990864 5.580875977535 5.50363739438798 2513169.608987283 4.92597250051826 823.167745342753 24.3579670736388 -84.2704581371997 3151840.97505854 T 25 CATAB v2.0f-lin.ifort 2020-Nov-12 23:17:52 2020-Nov-12 23:17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Dec-05 10:03 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin