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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 ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 105 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1118167822462997 1.6269e-08  
a 3.142446733582459 6.8635e-09 au
q 2.791068451452873 5.0804e-08 au
i 3.831112080946857 2.1718e-06 deg
node 283.1941791150646 2.8462e-05 deg
peri 312.4532410818642 3.0162e-05 deg
M 292.8421958995222 1.1337e-05 deg
tp 2459776.072115798495
(2022-Jul-15.57211580)
6.4688e-05 TDB
period 2034.699667711231
5.57
6.666e-06
1.825e-08
d
yr
n .1769302888838393 5.7965e-10 deg/d
Q 3.493825015712044 7.6309e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3707  
   data-arc span      62867 days (172.12 yr)  
   first obs. used      1849-05-26  
   last obs. used      2021-07-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54474  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 21:03:19  

Additional Information
 Earth MOID = 1.78161 au 
 Jupiter MOID = 1.53409 au 
 T_jup = 3.197 
[ hide covariance matrix ]
Orbital Elements at Epoch 2451673.5 (2000-May-09.0) TDB
Reference: JPL 105 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1194304703956187 1.6118e-08  
q 2.763530025944014 5.0768e-08 au
tp 2451662.088838365847
(2000-Apr-27.58883837)
5.4314e-05 TDB
node 283.6573078507549 2.834e-05 deg
peri 314.3370907983036 2.987e-05 deg
i 3.842907946249517 2.1781e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3707  
   data-arc span      62867 days (172.12 yr)  
   first obs. used      1849-05-26  
   last obs. used      2021-07-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54474  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 21:03:19  

Additional Information
 Jupiter MOID = 1.53409 au 
 T_jup = 3.197 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.597892704151906E-16 -8.126312210361605E-16 7.264619192069152E-14 -8.798947159464287E-16 1.731289579826973E-14 -1.27905445658035E-17
q -8.126312210361605E-16 2.577340267761365E-15 -2.23044315817214E-13 2.791312899629046E-15 -5.350978107794495E-14 1.096358409271418E-16
tp 7.264619192069152E-14 -2.23044315817214E-13 2.95004507322642E-9 -3.410606600066506E-13 5.175381687934585E-10 -3.033210264174921E-14
node -8.798947159464287E-16 2.791312899629046E-15 -3.410606600066506E-13 8.031706424003883E-10 -8.013129107120069E-10 1.310984828097024E-11
peri 1.731289579826973E-14 -5.350978107794495E-14 5.175381687934585E-10 -8.013129107120069E-10 8.922387876360179E-10 -1.3085243232735E-11
i -1.27905445658035E-17 1.096358409271418E-16 -3.033210264174921E-14 1.310984828097024E-11 -1.3085243232735E-11 4.744119584356606E-12

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 1.73180808763262 1.73180770569801 1.73180846956723 2.51406693778516 2.31134985221494 2430475.396395722 0.641708161723163 29.3849780141166 9.84529244361131 79.6748614290675 4395302.27577458 T 105 CATAB v2.0g-lin.ifort 2021-Aug-25 21:05:04 2021-Aug-25 21:05
1952-Sep-10 20:30 < 00:01 Jupiter 1.55129630782993 1.55129612502029 1.55129649063947 1.69044105723747 1.32874827609371 2434266.354396999 0.53336673391617 33.4263377152198 26.1054896769111 -81.288998346842 5050623.90048706 T 105 CATAB v2.0g-lin.ifort 2021-Aug-25 21:05:04 2021-Aug-25 21:05
1963-Jan-10 16:13 < 00:01 Jupiter 1.79261627898241 1.79261601960885 1.79261653835607 2.74411205427072 2.56615243849186 2438040.175446415 0.40038580014643 32.8297619781382 5.57013722074838 -83.0268145266753 5833133.59279594 T 105 CATAB v2.0g-lin.ifort 2021-Aug-25 21:05:04 2021-Aug-25 21:05
2036-Nov-02 19:28 < 00:01 Jupiter 1.63438842881533 1.63438822069654 1.63438863693404 2.19119277876984 1.94031567727543 2465000.311320181 0.40525190030946 28.820584735616 8.8082691603227 -86.7086527884729 5051725.47225107 T 105 CATAB v2.0g-lin.ifort 2021-Aug-25 21:05:04 2021-Aug-25 21:05
2047-Mar-14 04:17 < 00:01 Jupiter 1.59690070041898 1.59690044694376 1.59690095389419 1.80555788225797 1.48297209267458 2468783.678263360 0.560393452107863 31.3336105449393 15.8865334474143 86.2866806165787 5069383.71035945 T 105 CATAB v2.0g-lin.ifort 2021-Aug-25 21:05:04 2021-Aug-25 21:05
2057-Jul-18 06:28 < 00:01 Jupiter 1.92399388455745 1.92399348855066 1.92399428056423 3.40607144665387 3.27426924981582 2472562.769281269 0.648421295717517 34.3765919670476 11.21143221099 -72.6216934877405 4798155.23015496 T 105 CATAB v2.0g-lin.ifort 2021-Aug-25 21:05:04 2021-Aug-25 21:05
2120-Dec-11 11:10 00:01 Jupiter 1.88166308472348 1.8816623569176 1.88166381252926 2.93923387178551 2.78187066388407 2495718.965265086 1.27440317784606 27.7513397449618 22.9435523707189 -7.68174461511499 2567857.20057135 T 105 CATAB v2.0g-lin.ifort 2021-Aug-25 21:05:04 2021-Aug-25 21:05
2131-May-10 06:36 00:01 Jupiter 1.56773741077544 1.56773714329755 1.56773767825377 1.95631863571504 1.65729170288832 2499520.774656415 1.44097989797152 70.1371204910554 14.5289705951754 -80.0364383523435 4684741.46229061 T 105 CATAB v2.0g-lin.ifort 2021-Aug-25 21:05:04 2021-Aug-25 21:05
2141-Sep-14 06:44 00:02 Jupiter 1.6759637940707 1.67596314055886 1.6759644475833 2.12813239315235 1.87567559226407 2503300.780643695 1.63815679683649 80.1107758129341 6.71106595362333 88.0408025275082 4935788.50118913 T 105 CATAB v2.0g-lin.ifort 2021-Aug-25 21:05:04 2021-Aug-25 21:05

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