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JPL Small-Body Database Browser
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867 Kovacia (A917 DH)
Classification: Main-belt Asteroid          SPK-ID: 2000867
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1275674772457193 3.4093e-08  
a 3.066267414361835 1.1947e-08 au
q 2.675111415750941 1.0475e-07 au
i 5.97383080578142 4.3168e-06 deg
node 46.81988531404625 4.0413e-05 deg
peri 70.13535675035119 4.5173e-05 deg
M 113.7669432278409 1.8904e-05 deg
tp 2458380.734985270524
(2018-Sep-19.23498527)
0.00010245 TDB
period 1961.161994620693
5.37
1.1462e-05
3.138e-08
d
yr
n .1835646422822034 1.0729e-09 deg/d
Q 3.457423412972729 1.3471e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2479  
   data-arc span      37594 days (102.93 yr)  
   first obs. used      1917-02-26  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43911  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:39:13  

Additional Information
 Earth MOID = 1.69887 au 
 Jupiter MOID = 1.66948 au 
 T_jup = 3.211 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456085.5 (2012-Jun-07.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1310195465410853 3.385e-08  
q 2.666142495610401 1.0525e-07 au
tp 2456419.651808542514
(2013-May-07.15180854)
9.9374e-05 TDB
node 46.88756623970175 4.0312e-05 deg
peri 70.08731068509613 4.4861e-05 deg
i 5.982939908754512 4.3237e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2479  
   data-arc span      37594 days (102.93 yr)  
   first obs. used      1917-02-26  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43911  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:39:13  

Additional Information
 Jupiter MOID = 1.66948 au 
 T_jup = 3.211 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.145830130644031E-15 -3.544619553794326E-15 9.716773564671618E-13 -2.341606559677166E-16 2.142860218092403E-13 -5.315995848355921E-16
q -3.544619553794326E-15 1.1078451777773E-14 -3.005165158193157E-12 2.387600988187196E-15 -6.685485400900422E-13 1.603482342709316E-15
tp 9.716773564671618E-13 -3.005165158193157E-12 9.875288200382028E-9 -1.936577583743659E-11 1.978141200856636E-9 -1.123808263181126E-13
node -2.341606559677166E-16 2.387600988187196E-15 -1.936577583743659E-11 1.625080011779301E-9 -1.619776319581898E-9 -5.240321952044404E-11
peri 2.142860218092403E-13 -6.685485400900422E-13 1.978141200856636E-9 -1.619776319581898E-9 2.012465444936702E-9 5.207543605928984E-11
i -5.315995848355921E-16 1.603482342709316E-15 -1.123808263181126E-13 -5.240321952044404E-11 5.207543605928984E-11 1.869418199013655E-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 11.5   n/a MPO384753  
diameter diameter 24.113 km 0.439 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8.6772 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2008) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
geometric albedo albedo 0.092   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

867 Kovacia (A917 DH)          Discovered 1917-Feb-25 by Palisa, J. at Vienna
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
1904-Aug-23 04:20 00:02 Jupiter 1.91812082528525 1.91811982603343 1.91812182453697 3.57816624862485 3.45254893981799 2416715.680674438 2.01049653427241 67.3022891639097 36.0752913873824 74.69008237411 1656337.9199906 T 29 CATAB v2.0f-lin.ifort 2020-Feb-22 15:39:23 2020-Feb-22 15:39
1914-Mar-10 03:47 00:02 Jupiter 1.69892836781263 1.69892786247665 1.69892887314862 1.72757433808181 1.40974730225624 2420201.657562827 1.95952852102836 126.38644170901 36.1660558654716 83.965116715179 2502638.2060766 T 29 CATAB v2.0f-lin.ifort 2020-Feb-22 15:39:23 2020-Feb-22 15:39
1963-Jun-24 16:24 < 00:01 Jupiter 1.79871266596358 1.79871209703924 1.79871323488771 2.92519214797058 2.75951796608778 2438205.183026277 0.947109271098532 74.4902586950058 17.1638872326226 -87.0065457087519 2101228.5986031 T 29 CATAB v2.0f-lin.ifort 2020-Feb-22 15:39:23 2020-Feb-22 15:39
1972-Dec-29 11:36 < 00:01 Jupiter 1.76930380771387 1.76930339118838 1.76930422423915 1.94488802058288 1.68081088338768 2441680.983286978 0.781105507056835 64.2625197020899 13.5871531332468 75.3259787488877 2758403.70083517 T 29 CATAB v2.0f-lin.ifort 2020-Feb-22 15:39:23 2020-Feb-22 15:39
2022-Apr-19 19:33 < 00:01 Jupiter 1.70796945699469 1.70796896691677 1.70796994707242 2.3577398250456 2.13707503430919 2459689.314260435 0.304375128460226 73.6514505558784 13.2971466198042 -84.5949609168562 1997911.03233481 T 29 CATAB v2.0f-lin.ifort 2020-Feb-22 15:39:23 2020-Feb-22 15:39
2031-Oct-24 19:20 < 00:01 Jupiter 1.87628770479862 1.87628724700723 1.8762881625899 2.3698903208647 2.171061841397 2463164.305823734 0.493476803942383 52.478530286322 8.19740598867263 78.8001345388655 2853865.49606268 T 29 CATAB v2.0f-lin.ifort 2020-Feb-22 15:39:23 2020-Feb-22 15:39
2081-Feb-12 12:22 00:01 Jupiter 1.66240176856465 1.66240130954179 1.66240222758722 1.94367298084278 1.66097260365083 2481173.015235411 1.44389799120582 97.359824579942 39.0464210144447 -78.1959396663092 1660913.44269685 T 29 CATAB v2.0f-lin.ifort 2020-Feb-22 15:39:23 2020-Feb-22 15:39
2130-May-15 22:09 00:02 Jupiter 1.95296215871633 1.95296091196295 1.95296340546949 3.76661529804385 3.64965305557573 2499161.422733212 2.23500972004712 51.7406558008143 48.9258383923513 -11.2332666209182 1323523.41302743 T 29 CATAB v2.0f-lin.ifort 2020-Feb-22 15:39:23 2020-Feb-22 15:39
2139-Dec-10 10:58 00:03 Jupiter 1.66982324882946 1.66982270157341 1.66982379608732 1.74376323576289 1.42344814643523 2502656.956792853 2.67653030596419 166.18868647703 48.9376035061591 -77.3201323846635 2213081.85358927 T 29 CATAB v2.0f-lin.ifort 2020-Feb-22 15:39:23 2020-Feb-22 15:39
2189-Mar-22 11:30 00:04 Jupiter 1.82398451734916 1.82398288599614 1.82398614870166 3.14973392673423 2.99867690274616 2520656.979266148 3.50040492138453 83.0071827844298 46.6583225528893 64.03937769641 1003229.63514558 T 29 CATAB v2.0f-lin.ifort 2020-Feb-22 15:39:23 2020-Feb-22 15:39
2198-Oct-03 16:49 00:04 Jupiter 1.72929167822341 1.72929041341667 1.7292929430339 1.81438222168993 1.52064623620924 2524139.200946955 3.92172144275411 192.017060341208 23.5347169184733 84.7606059412939 2452482.7666607 T 29 CATAB v2.0f-lin.ifort 2020-Feb-22 15:39:23 2020-Feb-22 15:39

Alternate Designations
 A917 DH = 1942 XF = 1958 WA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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