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515 Athalia (A903 SH)
Classification: Main-belt Asteroid          SPK-ID: 2000515
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1756921474631097 3.3769e-08  
a 3.120856743854032 1.1723e-08 au
q 2.572546720601589 1.0886e-07 au
i 2.03847782874708 3.579e-06 deg
node 121.0913978648074 0.0001107 deg
peri 300.3011819756779 0.0001112 deg
M 357.4314032242311 1.0206e-05 deg
tp 2459014.868208114107
(2020-Jun-14.36820811)
5.7107e-05 TDB
period 2013.766804456937
5.51
1.1346e-05
3.106e-08
d
yr
n .1787694579150058 1.0073e-09 deg/d
Q 3.669166767106475 1.3782e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3019  
   data-arc span      42776 days (117.11 yr)  
   first obs. used      1903-09-20  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44411  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:28:46  

Additional Information
 Earth MOID = 1.58623 au 
 Jupiter MOID = 1.66671 au 
 T_jup = 3.191 
[ 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 10.8   n/a MPO502158 IRAS observations used: 8
diameter diameter 41.190 km 0.146 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 10.636 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pilcher, F. (2015) Minor Planet Bull. 42, 91-94.]
geometric albedo albedo 0.039   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.875   0.029 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=9.50 deg.
U-B UB 0.415   0.050 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=9.50 deg.
Tholen spectral type spec_T I   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B Cb   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)

515 Athalia (A903 SH)          Discovered 1903-Sep-20 by Wolf, M. at Heidelberg
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
1913-Sep-27 02:31 00:02 Jupiter 1.80835632758787 1.80835564716332 1.80835700801221 2.35364916238019 2.14543170379943 2420037.604882140 1.83868819001552 59.1607611944576 4.14465931662841 -89.6496287258328 1972918.04036457 T 41 CATAB v2.0f-lin.ifort 2020-Nov-13 04:28:54 2020-Nov-13 04:28
1923-Nov-28 12:23 00:02 Jupiter 1.71653268848361 1.71653228422526 1.71653309274166 1.58369018905252 1.23335933259042 2423752.015765776 1.60229538625551 81.2997898882014 49.4184143104549 -74.0241646188735 2606129.79771112 T 41 CATAB v2.0f-lin.ifort 2020-Nov-13 04:28:54 2020-Nov-13 04:28
1934-Feb-09 08:32 00:01 Jupiter 1.98801175891427 1.98801105916205 1.98801245866695 2.50242114928851 2.3259366545407 2427477.855218386 1.35988803484442 77.9829263719695 8.49002368786233 82.6393508110771 2947495.67472226 T 41 CATAB v2.0f-lin.ifort 2020-Nov-13 04:28:54 2020-Nov-13 04:28
1985-Dec-21 08:04 < 00:01 Jupiter 1.99402170164085 1.99402122962983 1.99402217365186 3.57778649570472 3.45702100449686 2446420.836018370 0.55875851921737 40.2251114857794 16.2866825544071 77.6572039156252 3293814.49858332 T 41 CATAB v2.0f-lin.ifort 2020-Nov-13 04:28:54 2020-Nov-13 04:28
1996-Feb-24 13:34 < 00:01 Jupiter 1.71797811547593 1.71797779013487 1.71797844081679 1.80389106707611 1.50597275591457 2450138.065386826 0.403659278289102 49.9058173869204 23.3601780848416 88.5237804510149 2860422.42950683 T 41 CATAB v2.0f-lin.ifort 2020-Nov-13 04:28:54 2020-Nov-13 04:28
2006-Apr-30 14:08 < 00:01 Jupiter 1.79777239954544 1.79777204162896 1.79777275746182 1.79448302063469 1.50926042517831 2453856.089185317 0.242756144673458 59.6307673713487 21.5420801048181 -81.33949225639 2838127.81064524 T 41 CATAB v2.0f-lin.ifort 2020-Nov-13 04:28:54 2020-Nov-13 04:28
2068-May-24 22:22 < 00:01 Jupiter 1.84218471267539 1.84218424312604 1.84218518222464 2.63791250736003 2.45743720412175 2476526.431851670 0.932066503145326 45.858440876138 8.24671988247674 87.4088932516172 2532313.72333879 T 41 CATAB v2.0f-lin.ifort 2020-Nov-13 04:28:54 2020-Nov-13 04:28
2078-Jul-24 18:24 00:01 Jupiter 1.68849163938506 1.68849133650994 1.68849194225989 1.56388832314753 1.20102361379708 2480239.266628052 1.13575571285836 69.8904885513002 60.9589988580781 86.1021525587409 2671000.74087084 T 41 CATAB v2.0f-lin.ifort 2020-Nov-13 04:28:54 2020-Nov-13 04:28
2088-Oct-02 02:49 00:01 Jupiter 1.93206752574823 1.93206689593234 1.93206815556445 2.27351885005447 2.07173446764627 2483961.617417650 1.32456851226266 78.5035592211503 6.19393553603397 85.2380246017818 3035818.66571409 T 41 CATAB v2.0f-lin.ifort 2020-Nov-13 04:28:54 2020-Nov-13 04:28
2150-Oct-22 21:36 00:02 Jupiter 1.72448180201212 1.72448116666772 1.72448243735623 1.94987380715449 1.67918363215194 2506626.399824324 2.41592004013758 75.3976205659668 26.3757430713975 -65.2348898238727 1675623.18733755 T 41 CATAB v2.0f-lin.ifort 2020-Nov-13 04:28:54 2020-Nov-13 04:28
2160-Dec-24 13:13 00:03 Jupiter 1.74718330824456 1.74718259992967 1.74718401655976 1.66475950333779 1.34232555121131 2510342.050832399 2.58099588763495 107.562190188403 35.3738388233066 -77.9872560601979 2465117.8937516 T 41 CATAB v2.0f-lin.ifort 2020-Nov-13 04:28:54 2020-Nov-13 04:28

Alternate Designations
 A903 SH = 1931 TQ = 1937 WO = 1937 WQ = 1937 WR = 1937 YH = 1953 TD = 1974 QA3 = 1977 CF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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