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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
1678 Hveen (1940 YH)
Classification: Main-belt Asteroid          SPK-ID: 2001678
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer 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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .11031190429275 3.582e-08  
a 3.158974537884581 1.4862e-08 au
q 2.810502040998223 1.1444e-07 au
i 10.19435604683126 4.9925e-06 deg
node 351.5854716212949 2.139e-05 deg
peri 121.397119025086 3.1961e-05 deg
M 327.0618575472561 2.2639e-05 deg
tp 2458788.135158172925
(2019-Oct-31.63515817)
0.00012914 TDB
period 2050.773113242933
5.61
1.4472e-05
3.962e-08
d
yr
n .1755435536360841 1.2388e-09 deg/d
Q 3.507447034770939 1.6501e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2220  
   data-arc span      36774 days (100.68 yr)  
   first obs. used      1919-04-02  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45091  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:04:16  

Additional Information
 Earth MOID = 1.84341 au 
 Jupiter MOID = 1.60653 au 
 T_jup = 3.172 
[ 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 10.9   n/a MPO319103  
diameter diameter 42.665 km 0.305 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.987 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Carbognani, A. (2014). Minor Planet Bull. 41, 265-270.]
geometric albedo albedo 0.035   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1678 Hveen (1940 YH)          Discovered 1940-Dec-28 by Vaisala, Y. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ 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
1928-May-01 23:55 00:02 Jupiter 1.88768538713561 1.88768419088554 1.88768658338558 3.9567500933442 3.84167309159547 2425368.496342169 2.06819160051412 66.696570070966 55.2550182073901 -69.0461587615869 2325155.46861214 T 25 CATAB v2.0f-lin.ifort 2019-Dec-13 21:04:32 2019-Dec-13 21:04
1939-Jan-12 13:48 00:02 Jupiter 1.65642867132765 1.65642813639983 1.65642920625642 3.54105419987048 3.39357562631659 2429276.074781122 1.69764727580712 173.960905557055 20.9934805651961 86.8857135239057 2471882.72328312 T 25 CATAB v2.0f-lin.ifort 2019-Dec-13 21:04:32 2019-Dec-13 21:04
1949-Sep-28 00:22 00:02 Jupiter 1.74354052272808 1.74353983689421 1.74354120856254 2.90871407055585 2.73660473315581 2433187.515356091 1.50013779424256 92.2282242584694 23.1593611339365 70.306240385443 2641661.95213889 T 25 CATAB v2.0f-lin.ifort 2019-Dec-13 21:04:32 2019-Dec-13 21:04
2046-Mar-19 07:02 < 00:01 Jupiter 1.69597821741307 1.69597770213648 1.69597873268956 3.63413331429993 3.49400412290245 2468423.793023879 0.741659698414326 128.1258424445 23.2593156212742 89.9254109320734 2737330.63883768 T 25 CATAB v2.0f-lin.ifort 2019-Dec-13 21:04:32 2019-Dec-13 21:04
2056-Dec-07 02:59 00:01 Jupiter 1.67266875211571 1.67266821273257 1.67266929149943 3.206372884832 3.04434678247337 2472339.624099906 1.02409714472345 111.76147155721 19.5880196569682 81.10133580072 2741531.19777609 T 25 CATAB v2.0f-lin.ifort 2019-Dec-13 21:04:32 2019-Dec-13 21:04
2067-Aug-01 03:42 00:01 Jupiter 1.9327574607374 1.93275658695355 1.93275833452147 2.66992158964114 2.50039797429812 2476228.654219540 1.43098197853741 62.0636893468711 27.7311073805033 53.433060281147 3300665.57374505 T 25 CATAB v2.0f-lin.ifort 2019-Dec-13 21:04:32 2019-Dec-13 21:04
2153-May-24 13:08 00:03 Jupiter 1.7695920960436 1.76959052015456 1.76959367193485 3.62272386070924 3.48809689755871 2507571.047188723 3.26120692662954 156.661368175928 49.9484483055652 67.241873031755 2405177.81939019 T 25 CATAB v2.0f-lin.ifort 2019-Dec-13 21:04:32 2019-Dec-13 21:04
2164-Feb-07 14:04 00:03 Jupiter 1.62914296692335 1.62914243619337 1.6291434976538 3.38772775632326 3.23061312864347 2511482.086228145 3.35060595819548 165.695084067811 25.2546374141907 86.2928927285944 2583562.78434966 T 25 CATAB v2.0f-lin.ifort 2019-Dec-13 21:04:32 2019-Dec-13 21:04
2174-Oct-18 01:52 00:04 Jupiter 1.82988871609243 1.82988672341041 1.82989070877851 2.90782891572678 2.7440308014062 2515387.577682875 3.9259321143557 178.54957952763 27.1030630089297 53.0467700334969 3039716.02589383 T 25 CATAB v2.0f-lin.ifort 2019-Dec-13 21:04:32 2019-Dec-13 21:04

Alternate Designations
 1940 YH = 1951 YD1 = A919 GA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-16 03:12 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin