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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1100144898836915 1.8799e-08  
a 3.157437939952136 1.2971e-08 au
q 2.810074015648889 5.8677e-08 au
i 10.19674937717815 3.7105e-07 deg
node 351.5737803958765 1.4822e-06 deg
peri 121.1670681434597 5.0972e-06 deg
M 72.63370341880623 6.4415e-06 deg
tp 2458787.037287740876
(2019-Oct-30.53728774)
3.5073e-05 TDB
period 2049.276980343884
5.61
1.2628e-05
3.457e-08
d
yr
n .1756717141962866 1.0825e-09 deg/d
Q 3.504801864255384 1.4398e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2827  
   data-arc span      37229 days (101.93 yr)  
   first obs. used      1919-04-02  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41339  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 12:47:23  

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

[ 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 23:54 00:02 Jupiter 1.88768532193827 1.88768430281707 1.88768634105947 3.95675069597339 3.84167370888752 2425368.496076951 1.83299878576171 48.8757436214407 7.69067726308082 4.86900451657669 3688106.73657863 T 34 CATAB v2.0f-lin.ifort 2021-Apr-12 12:48:55 2021-Apr-12 12:48
1939-Jan-12 13:47 00:02 Jupiter 1.6564287537862 1.65642846650228 1.6564290410719 3.5410536818749 3.39357509414344 2429276.074512120 1.50582125498292 105.41309706433 6.20846120576638 84.9110990656155 10632504.5572949 T 34 CATAB v2.0f-lin.ifort 2021-Apr-12 12:48:55 2021-Apr-12 12:48
1949-Sep-28 00:22 00:01 Jupiter 1.74354061010412 1.74354012962397 1.74354109058457 2.90871262356536 2.73660320503881 2433187.515103660 1.33018459248223 51.9193223924161 8.70401768668423 56.3367449491943 10892457.7054972 T 34 CATAB v2.0f-lin.ifort 2021-Apr-12 12:48:55 2021-Apr-12 12:48
2046-Mar-19 07:02 < 00:01 Jupiter 1.69597828681528 1.69597813661265 1.6959784370183 3.63413321843181 3.49400402982843 2468423.792951923 0.621639607708172 59.3198732597603 4.74288408937687 85.0204264486005 16132314.9062854 T 34 CATAB v2.0f-lin.ifort 2021-Apr-12 12:48:55 2021-Apr-12 12:48
2056-Dec-07 02:58 < 00:01 Jupiter 1.67266883325281 1.67266848141974 1.67266918508607 3.2063716833929 3.04434552607884 2472339.623952980 0.870676309921856 35.7199860545949 5.85225957685682 60.0980279436496 11310640.8791226 T 34 CATAB v2.0f-lin.ifort 2021-Apr-12 12:48:55 2021-Apr-12 12:48
2067-Aug-01 03:42 00:01 Jupiter 1.93275746906098 1.9327568251968 1.93275811292515 2.66992028814037 2.50039658628036 2476228.653982371 1.22233739167364 34.3156818065579 7.43462993099967 21.708957244876 7011227.63062919 T 34 CATAB v2.0f-lin.ifort 2021-Apr-12 12:48:55 2021-Apr-12 12:48
2153-May-24 13:08 00:03 Jupiter 1.76959195161095 1.76959067967883 1.76959322354548 3.62272415726858 3.48809719512197 2507571.046885660 2.83028276183004 124.190338799526 7.93406090683808 60.156064667957 12572850.2142205 T 34 CATAB v2.0f-lin.ifort 2021-Apr-12 12:48:55 2021-Apr-12 12:48
2164-Feb-07 14:04 00:03 Jupiter 1.62914306463887 1.62914273411344 1.6291433951643 3.38772679953802 3.23061213586872 2511482.085920253 2.9119629562005 19.9697107107907 17.9135462303306 -26.8397444129674 9402652.3374912 T 34 CATAB v2.0f-lin.ifort 2021-Apr-12 12:48:55 2021-Apr-12 12:48
2174-Oct-18 01:51 00:03 Jupiter 1.82988890608824 1.82988719952045 1.82989061265905 2.90782713117234 2.74402892877364 2515387.577291980 3.41410101448556 147.47110092145 6.8134445956011 50.3739846144917 9688817.17647967 T 34 CATAB v2.0f-lin.ifort 2021-Apr-12 12:48:55 2021-Apr-12 12:48

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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