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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 ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1100144898745774 1.8799e-08  
a 3.157437939997731 1.2964e-08 au
q 2.810074015718245 5.8674e-08 au
i 10.1967493766437 3.7104e-07 deg
node 351.5737803973896 1.4822e-06 deg
peri 121.1670681547534 5.0971e-06 deg
M 72.63370339943927 6.4407e-06 deg
tp 2458787.037287842166
(2019-Oct-30.53728784)
3.5069e-05 TDB
period 2049.276980388272
5.61
1.2621e-05
3.455e-08
d
yr
n .1756717141924815 1.0819e-09 deg/d
Q 3.504801864277218 1.439e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2835  
   data-arc span      37243 days (101.97 yr)  
   first obs. used      1919-04-02  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41285  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:40:15  

Additional Information
 Earth MOID = 1.8427 au 
 Jupiter MOID = 1.60771 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 11.02   n/a E2021B10  
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. 2020-October); 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

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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 23:54 00:02 Jupiter 1.88768531394032 1.88768429534738 1.88768633253316 3.9567506673042 3.84167367886468 2425368.496059853 1.83204484584057 48.8501413854339 7.69041068153667 4.86657066393844 3689248.51420282 T 35 CATAB v2.0g-lin.ifort 2021-May-03 19:41:44 2021-May-03 19:41
1939-Jan-12 13:47 00:02 Jupiter 1.65642875194226 1.65642846474892 1.65642903913739 3.54105366500231 3.39357507636985 2429276.074502298 1.50503678736478 105.355875961642 6.20835953632663 84.9104632807284 10632615.8965926 T 35 CATAB v2.0g-lin.ifort 2021-May-03 19:41:44 2021-May-03 19:41
1949-Sep-28 00:22 00:01 Jupiter 1.74354061319752 1.74354013298198 1.74354109341335 2.90871265312227 2.73660323676956 2433187.515105262 1.32948639582742 51.8928938336402 8.70358766053466 56.339885202676 10893215.0291789 T 35 CATAB v2.0g-lin.ifort 2021-May-03 19:41:44 2021-May-03 19:41
2046-Mar-19 07:02 < 00:01 Jupiter 1.69597828684329 1.69597813671556 1.6959784369714 3.63413321733492 3.49400402868991 2468423.792951687 0.621360817918584 59.3027961253044 4.74185568307178 85.0227306224991 16135410.1887384 T 35 CATAB v2.0g-lin.ifort 2021-May-03 19:41:44 2021-May-03 19:41
2056-Dec-07 02:59 < 00:01 Jupiter 1.67266883337999 1.67266848162175 1.67266918513832 3.20637172319752 3.04434556801459 2472339.623961848 0.870271626348103 35.7063285039909 5.8519253494956 60.0951760590754 11311953.8686717 T 35 CATAB v2.0g-lin.ifort 2021-May-03 19:41:44 2021-May-03 19:41
2067-Aug-01 03:42 00:01 Jupiter 1.93275746930196 1.93275682568015 1.93275811292377 2.66992029387423 2.50039659242483 2476228.653988244 1.22175349137213 34.2994931833441 7.43413178783022 21.7043043796307 7011248.72589764 T 35 CATAB v2.0g-lin.ifort 2021-May-03 19:41:44 2021-May-03 19:41
2153-May-24 13:08 00:03 Jupiter 1.76959195098826 1.76959067970072 1.76959322227831 3.62272415342612 3.48809719108292 2507571.046881272 2.82888320471748 124.133209426801 7.93325534110246 60.1576609272783 12574148.0342079 T 35 CATAB v2.0g-lin.ifort 2021-May-03 19:41:44 2021-May-03 19:41
2164-Feb-07 14:04 00:03 Jupiter 1.62914306508284 1.62914273463862 1.62914339552706 3.38772680897553 3.23061214580906 2511482.085921991 2.91051954306986 19.960972713009 17.9133645238406 -26.8165862742007 9405973.73631122 T 35 CATAB v2.0g-lin.ifort 2021-May-03 19:41:44 2021-May-03 19:41
2174-Oct-18 01:51 00:03 Jupiter 1.82988890825496 1.82988720247333 1.8298906140395 2.90782714748232 2.74402894625694 2515387.577295281 3.4124069443254 147.397941551455 6.81307129047809 50.3730981532025 9689330.58366528 T 35 CATAB v2.0g-lin.ifort 2021-May-03 19:41:44 2021-May-03 19:41

Alternate Designations
 1940 YH = 1951 YD1 = A919 GA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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