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 ]  
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1101037982071523 3.5142e-08  
a 3.158218909337055 1.3532e-08 au
q 2.810487011849395 1.1114e-07 au
i 10.19573692718537 4.6229e-06 deg
node 351.5733634862952 1.9367e-05 deg
peri 121.2834840647131 2.9768e-05 deg
M 37.39299064059278 2.0544e-05 deg
tp 2458787.563813902533
(2019-Oct-31.06381390)
0.00011705 TDB
period 2050.037338063873
5.61
1.3175e-05
3.607e-08
d
yr
n .1756065576542117 1.1286e-09 deg/d
Q 3.505950806824715 1.5021e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2664  
   data-arc span      36969 days (101.22 yr)  
   first obs. used      1919-04-02  
   last obs. used      2020-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41723  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:16:32  

Additional Information
 Earth MOID = 1.84314 au 
 Jupiter MOID = 1.60681 au 
 T_jup = 3.172 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456777.5 (2014-Apr-30.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1119232942526565 3.5336e-08  
q 2.806857971788685 1.1257e-07 au
tp 2456743.181280874658
(2014-Mar-26.68128087)
0.00011555 TDB
node 351.6187784596337 1.9386e-05 deg
peri 122.225866702568 2.9375e-05 deg
i 10.19034588071068 4.6202e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2664  
   data-arc span      36969 days (101.22 yr)  
   first obs. used      1919-04-02  
   last obs. used      2020-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41723  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:16:32  

Additional Information
 Jupiter MOID = 1.60681 au 
 T_jup = 3.172 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.248650806954152E-15 -3.954827356206474E-15 1.436785175662811E-12 -5.58686028446728E-15 2.943757810684125E-13 -1.749066616557533E-15
q -3.954827356206474E-15 1.267114619513015E-14 -4.816735422333515E-12 1.699528060703845E-14 -9.825846107685119E-13 4.75819741011678E-15
tp 1.436785175662811E-12 -4.816735422333515E-12 1.335284770459593E-8 -2.691737757185092E-11 2.561901360942919E-9 1.858536879258401E-12
node -5.58686028446728E-15 1.699528060703845E-14 -2.691737757185092E-11 3.758095660155764E-10 -3.745519705463111E-10 -4.253873397797223E-12
peri 2.943757810684125E-13 -9.825846107685119E-13 2.561901360942919E-9 -3.745519705463111E-10 8.62908702198052E-10 4.489258913048373E-12
i -1.749066616557533E-15 4.75819741011678E-15 1.858536879258401E-12 -4.253873397797223E-12 4.489258913048373E-12 2.134638994074927E-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 11.0   n/a MPO502169  
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-August); 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

[ show close-approach data ]
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 2020-Dec-02 11:17 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin