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10 Hygiea (A849 GA)
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 102 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1119474562459423 1.6279e-08  
a 3.142659686791983 6.8119e-09 au
q 2.790846929008951 5.0833e-08 au
i 3.831485302564607 2.1718e-06 deg
node 283.1982456195649 2.8469e-05 deg
peri 312.4209334969726 3.0163e-05 deg
M 258.2093350133198 1.1274e-05 deg
tp 2459775.873571301117
(2022-Jul-15.37357130)
6.4646e-05 TDB
period 2034.906498503636
5.57
6.6161e-06
1.811e-08
d
yr
n .1769123054374858 5.752e-10 deg/d
Q 3.494472444575016 7.5744e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3663  
   data-arc span      62752 days (171.81 yr)  
   first obs. used      1849-05-26  
   last obs. used      2021-03-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54124  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 17:43:21  

Additional Information
 Earth MOID = 1.77966 au 
 Jupiter MOID = 1.53461 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 5.55   n/a MPCxxxxx 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 13.828 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pilcher, F. (2020) Minor Planet Bull. 47, 133-135.]
[Vernazza, P.; Jorda, L.; Sevecek, P.; Broz, M.; et al. (2020) Nature Astronomy 4, 136-141.]
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 (A849 GA)          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 21:31 < 00:01 Jupiter 1.7318080051137 1.73180762185851 1.73180838836889 2.51406664598273 2.3113495247371 2430475.396299118 0.644504937289063 29.4530055261617 9.86139417541153 79.6161408871578 4390061.03867146 T 102 CATAB v2.0g-lin.ifort 2021-May-03 17:44:53 2021-May-03 17:44
1952-Sep-10 20:30 < 00:01 Jupiter 1.55129629812214 1.55129611527468 1.5512964809696 1.69044097018515 1.32874816277377 2434266.354323907 0.53567390996051 33.4634523707275 26.1293984965882 -81.1502803164048 5045579.93344089 T 102 CATAB v2.0g-lin.ifort 2021-May-03 17:44:53 2021-May-03 17:44
1963-Jan-10 16:13 < 00:01 Jupiter 1.79261631539331 1.79261605574472 1.792616575042 2.74411226647911 2.56615266915663 2438040.175386262 0.402106335723814 32.8863867869454 5.56976655465247 -83.021348426548 5832919.8413668 T 102 CATAB v2.0g-lin.ifort 2021-May-03 17:44:53 2021-May-03 17:44
2036-Nov-02 19:28 < 00:01 Jupiter 1.63438844238756 1.63438823410033 1.6343886506747 2.19119281131076 1.9403157162418 2465000.311382886 0.407187140308713 28.8638456601766 8.81107905037445 -86.7105133866961 5051563.4318452 T 102 CATAB v2.0g-lin.ifort 2021-May-03 17:44:53 2021-May-03 17:44
2047-Mar-14 04:17 < 00:01 Jupiter 1.59690065664053 1.59690040242098 1.59690091086008 1.80555773488391 1.48297190343731 2468783.678351870 0.56304146846934 31.3847840527687 15.9014316736302 86.1849358727347 5061167.56125931 T 102 CATAB v2.0g-lin.ifort 2021-May-03 17:44:53 2021-May-03 17:44
2057-Jul-18 06:28 < 00:01 Jupiter 1.92399381149398 1.92399341399818 1.92399420898988 3.40607103314868 3.27426881455951 2472562.769386343 0.651413487749537 34.4483377403017 11.227611319503 -72.5410337392021 4788601.43310669 T 102 CATAB v2.0g-lin.ifort 2021-May-03 17:44:53 2021-May-03 17:44
2120-Dec-11 11:10 00:01 Jupiter 1.88166323631774 1.88166250530417 1.88166396733109 2.93923425121258 2.78187107781072 2495718.965461504 1.28041679672761 27.8736526721632 22.9573687449827 -7.52741484446655 2557768.14461527 T 102 CATAB v2.0g-lin.ifort 2021-May-03 17:44:53 2021-May-03 17:44
2131-May-10 06:36 00:01 Jupiter 1.5677374458508 1.56773717782895 1.5677377138731 1.9563188134803 1.65729192002172 2499520.774875212 1.44773472576413 70.4039565384649 14.5324574370229 -80.0356236114712 4684924.50785066 T 102 CATAB v2.0g-lin.ifort 2021-May-03 17:44:53 2021-May-03 17:44
2141-Sep-14 06:44 00:02 Jupiter 1.67596365119822 1.67596299464045 1.67596430775676 2.12813181781379 1.87567491651794 2503300.780893340 1.6457963915647 80.4586846590148 6.7141070879833 88.0260405456276 4933548.45302158 T 102 CATAB v2.0g-lin.ifort 2021-May-03 17:44:53 2021-May-03 17:44

Alternate Designations
 A849 GA = A900 GA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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