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
JPL Small-Body Database Browser
Search: [ help ]  
24974 Macuch (1998 HG3)
Classification: Main-belt Asteroid          SPK-ID: 2024974
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]
Orbit Diagram
[ switch to new HTML5 viewer ]

Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2273213330615988 3.4783e-08  
a 2.20054943872114 5.1808e-09 au
q 1.700317606843098 7.6664e-08 au
i 6.718984907839413 3.8262e-06 deg
node 167.9641962703018 2.5483e-05 deg
peri 164.5936880058521 2.6373e-05 deg
M 192.5174117625217 6.9801e-06 deg
tp 2459555.205261162969
2.3931e-05 TDB
period 1192.326295647624
n .3019307729051321 1.0663e-09 deg/d
Q 2.700781270599183 6.3585e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1513  
   data-arc span      24300 days (66.53 yr)  
   first obs. used      1953-10-10  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49435  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 05:51:29  

Additional Information
 Earth MOID = .691386 au 
 Jupiter MOID = 2.68112 au 
 T_jup = 3.622 
[ 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 15.3   n/a MPO502345  
diameter diameter 2.219 km 0.379 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
geometric albedo albedo 0.312   0.124 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

24974 Macúch           Discovered 1998 Apr. 21 by P. Kolény and L. Kornoš at Modra.
Rudolf Macúch (1919-1993) was a Slovak orientalist and humanist. He studied evangelical theology at the Comenius University in Bratislava. For many years he lived in Iran, where he studied oriental languages. From 1963 to 1988 he held the chair of Semitic and Arabic studies at the Freie Universität in Berlin.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080819/MPCPages.arcLast Updated: 2008-08-25

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
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
2066-Apr-16 00:31 00:01 Amphi 0.0429449799938764 0.0429424200700201 0.0429475408620771 5.10067716423515 5.10067713799098 2475756.521618103 1.08327731251827 351.231084558552 30.948160501022 69.2735138054764 194197.310438432 T 26 CATAB v2.0f-lin.ifort 2020-May-20 05:51:34 2020-May-20 05:51
2082-Aug-17 16:46 00:01 Amphi 0.0464790280443014 0.0464771635562194 0.046480894063567 5.21719688520218 5.21719686149506 2481724.198757964 1.25285711281958 455.895050108227 31.1323621433801 -78.8916942621581 219108.670408951 T 26 CATAB v2.0f-lin.ifort 2020-May-20 05:51:34 2020-May-20 05:51

Alternate Designations
 1998 HG3 = 2000 AL177 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2020-Jul-07 12:09 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin