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10 Hygiea
Classification: Main-belt Asteroid          SPK-ID: 2000010
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 92 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1124606576702566 1.6349e-08  
a 3.14153917911499 6.9177e-09 au
q 2.78823961693484 5.0923e-08 au
i 3.831560034123068 2.1793e-06 deg
node 283.2021668627339 2.8683e-05 deg
peri 312.3152062465516 3.0363e-05 deg
M 152.1848512078909 1.1108e-05 deg
tp 2457740.732408487996
(2016-Dec-18.23240849)
6.15e-05 TDB
period 2033.81828406501
5.57
6.7177e-06
1.839e-08
d
yr
n .1770069641032358 5.8466e-10 deg/d
Q 3.49483874129514 7.6957e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3409  
   data-arc span      62175 days (170.23 yr)  
   first obs. used      1849-05-26  
   last obs. used      2019-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53379  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:03:59  

Additional Information
 Earth MOID = 1.77839 au 
 Jupiter MOID = 1.53558 au 
 T_jup = 3.197 
[ 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 5.43   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 22
diameter diameter 407.12 km 6.8 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 22
GM GM 7. km^3/s^2 n/a Scholl et al., A&A, v.179, p.311, 1987  
rotation period rot_per 27.630 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Michalowski, T.; Velichko, F.P.; Lindgren, M.; Oja, T.; et al. (1991) Astron. Astrophys. Suppl. Ser. 91, 53-59.]
[Lagerkvist, C.-I.; Oja, T.; Pohjolainen, S.; Erikson, A. (1992) Minor Planet Bull. 19, 29-30.]
[Erikson, A.; Magnusson, P. (1993) Icarus 103, 62-66.]
[Michalowski, T. (1993) Icarus 106, 563-572.]
[Michalowski, T.; Mohamed, R.A.; Velichko, F.P. (1995) Minor Planet Bull. 22, 35-36.]
[Lopez-Gonzalez, M.J.; Rodriguez, E. (2000) Astron. Astrophys. Suppl. Ser. 145, 255-261.]
[Kaasalainen, M.; Torppa, J.; Piironen, J. (2002) Icarus 159, 369-395.]
[Durech, J.; Kaasalainen, M.; Herald, D.; Dunham, D.; et al. (2011) Icarus 214, 652-670.]
[Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.]
[Hanus, J.; Marchis, F.; Durech, J. (2013) Icarus 226, 1045-1057.]
[Shevchenko, V.G.; Belksaya, I.N.; Muinon, K.; Penttila, A.; et al. (2016) Plan. Space Sci. 123, 101-116.]
[Hanus, J.; Viikinkoski, M.; Marchis, F.; Durech, J.; et al (2017) Astron. Astrophys. 601, A114.]
geometric albedo albedo 0.0717   0.002 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 22
B-V BV 0.696   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=11; phase (min.=4.77, mean=10.97, max.=18.25) deg.
U-B UB 0.351   0.034 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=11; phase (min.=4.77, mean=10.97, max.=18.25) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

10 Hygiea          Discovered 1849-Apr-12 by De Gasparis, A. at Naples
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
1942-Apr-25 21:30 < 00:01 Jupiter 1.73180778308183 1.73180738853796 1.73180817762559 2.51406605384307 2.31134885236506 2430475.396036149 0.670641845399413 30.1106514777676 9.99338343114755 79.1039494952364 4334081.21547194 T 92 CATAB v2.0f-lin.ifort 2019-Sep-23 19:04:20 2019-Sep-23 19:04
1952-Sep-10 20:30 < 00:01 Jupiter 1.55129632091524 1.55129613745642 1.55129650437406 1.69044072051337 1.32874784890748 2434266.354132895 0.557032047299718 33.8452439761966 26.3030886762727 -79.8313574421251 5011565.19189735 T 92 CATAB v2.0f-lin.ifort 2019-Sep-23 19:04:20 2019-Sep-23 19:04
1963-Jan-10 16:12 < 00:01 Jupiter 1.79261640388253 1.79261614149245 1.7926166662727 2.74411278443645 2.56615323110573 2438040.175250356 0.417767708178504 33.4842738335027 5.59137274042713 -83.0425880073906 5817474.76547854 T 92 CATAB v2.0f-lin.ifort 2019-Sep-23 19:04:20 2019-Sep-23 19:04
2036-Nov-02 19:29 < 00:01 Jupiter 1.63438852459927 1.6343883129619 1.63438873623655 2.19119322371613 1.94031619392968 2465000.311567106 0.426366853261527 29.4213940556923 8.84315235305639 -86.8638492340489 5020270.51526341 T 92 CATAB v2.0f-lin.ifort 2019-Sep-23 19:04:20 2019-Sep-23 19:04
2047-Mar-14 04:17 < 00:01 Jupiter 1.59690057502589 1.59690031334525 1.59690083670654 1.80555731760454 1.48297137513274 2468783.678620156 0.589135624304382 31.9197078825318 16.0579412932771 85.4074449990236 4989518.95239444 T 92 CATAB v2.0f-lin.ifort 2019-Sep-23 19:04:20 2019-Sep-23 19:04
2057-Jul-18 06:28 < 00:01 Jupiter 1.92399355477519 1.92399314083184 1.92399396871854 3.40606988518352 3.27426760170108 2472562.769706161 0.68082283914274 35.2518990168475 11.4609579042711 -71.7861757810341 4673849.2691251 T 92 CATAB v2.0f-lin.ifort 2019-Sep-23 19:04:20 2019-Sep-23 19:04
2120-Dec-11 11:12 00:01 Jupiter 1.88166397942262 1.88166321549026 1.88166474335477 2.93923669534002 2.78187372320538 2495718.966372120 1.33812105526759 29.1154431149299 23.0501872216498 -6.22194800768096 2454668.02910293 T 92 CATAB v2.0f-lin.ifort 2019-Sep-23 19:04:20 2019-Sep-23 19:04
2131-May-10 06:37 00:02 Jupiter 1.56773771186423 1.56773743712863 1.56773798660027 1.95632020835371 1.6572936200886 2499520.775969598 1.5125908480681 73.1303575304411 14.5678432094403 -80.0343102597797 4669443.15596365 T 92 CATAB v2.0f-lin.ifort 2019-Sep-23 19:04:20 2019-Sep-23 19:04
2141-Sep-14 06:46 00:02 Jupiter 1.67596287969903 1.67596219335266 1.67596356604634 2.12812836021004 1.87567086801263 2503300.782262784 1.71913887310979 83.8496465053779 6.76229441481368 87.909281165997 4904525.94445362 T 92 CATAB v2.0f-lin.ifort 2019-Sep-23 19:04:20 2019-Sep-23 19:04

Alternate Designations
 A900 GA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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