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JPL Small-Body Database Browser
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48 Doris
Classification: Main-belt Asteroid          SPK-ID: 2000048
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 168 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0724438865232663 2.9238e-08  
a 3.11008809457609 8.2562e-09 au
q 2.884781225575258 9.0936e-08 au
i 6.547416659615668 3.0943e-06 deg
node 183.5539792685335 2.977e-05 deg
peri 253.0539187946353 3.821e-05 deg
M 69.37479024927872 2.3709e-05 deg
tp 2458214.438365245052
(2018-Apr-05.93836524)
0.00013193 TDB
period 2003.35291843605
5.48
7.9773e-06
2.184e-08
d
yr
n .1796987423868581 7.1555e-10 deg/d
Q 3.335394963576922 8.8543e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2829  
   data-arc span      58146 days (159.20 yr)  
   first obs. used      1860-02-27  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52151  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:02:13  

Additional Information
 Earth MOID = 1.90839 au 
 Jupiter MOID = 1.88458 au 
 T_jup = 3.205 
[ 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 6.90   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 10
diameter diameter 216.473 km 4.757 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 11.89 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Harris, A.W.; Young, J.W. (1980) Icarus 43, 20-32.]
[Debehogne, H.; Lagerkvist, C.-I.; Zappala, V. (1982) Astron. Astrophys. Suppl. Ser. 50, 277-281.]
[Schober, H.J.; Schroll, A. (1982) Astron. Astrophys. 107, 402-405.]
[Higgins, D.; Pilcher, F. (2009) Minor Planet Bull. 36, 143-144.]
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Viikinkoski, M.; Hanus, J.; Kaasalainen, M.; Marchis, F.; Durech, J. (2017) Astron. Astrophys. 607, A117.]
geometric albedo albedo 0.065   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.716   0.012 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=9; phase (min.=3.85, mean=7.88, max.=12.86) deg.
U-B UB 0.442   0.016 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=9; phase (min.=3.85, mean=7.88, max.=12.86) deg.
Tholen spectral type spec_T CG   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 6 color indices
SMASSII spectral type spec_B Ch   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)

48 Doris          Discovered 1857-Sep-19 by Goldschmidt, H. at Paris
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
1951-Jan-30 18:11 < 00:01 Jupiter 1.89714256924338 1.89714229025589 1.89714284823087 3.70026540211633 3.57757159079984 2433677.257437788 0.711991144413258 49.4386733760611 11.5389563889893 -86.8042837333338 5053868.36996155 T 168 CATAB v2.0e-lin.ifort 2019-May-29 19:02:27 2019-May-29 19:02
1961-Mar-15 14:02 < 00:01 Jupiter 1.94382729054783 1.94382695998019 1.94382762111547 2.90325995744642 2.74907595622442 2437374.084731931 0.590330436893492 28.829526237801 9.05927532135008 -74.6768601312242 4397839.69698742 T 168 CATAB v2.0e-lin.ifort 2019-May-29 19:02:27 2019-May-29 19:02
2022-Sep-11 11:31 < 00:01 Jupiter 1.91720505998088 1.91720478575322 1.91720533420855 3.95485899916795 3.84152421910526 2459833.979660211 0.242235041262577 30.8689808870571 11.7019391137345 -89.6416202491678 5268980.74259805 T 168 CATAB v2.0e-lin.ifort 2019-May-29 19:02:27 2019-May-29 19:02
2032-Oct-31 20:24 < 00:01 Jupiter 1.91280632043348 1.91280599765556 1.91280664321141 2.99785756700729 2.84631633200699 2463537.349819113 0.386359348095517 29.5181761584741 10.3241020437575 -77.7331362600704 4282065.70413264 T 168 CATAB v2.0e-lin.ifort 2019-May-29 19:02:27 2019-May-29 19:02
2094-Apr-22 05:16 00:01 Jupiter 1.95512892981362 1.95512853879202 1.95512932083577 4.17311921123968 4.067980075609 2485989.719145903 1.10392271091867 74.2840376223145 11.8739640151348 80.3612434894878 5443342.85951379 T 168 CATAB v2.0e-lin.ifort 2019-May-29 19:02:27 2019-May-29 19:02
2104-Jun-19 08:22 00:01 Jupiter 1.8910692970505 1.89106897573126 1.89106961836984 3.19332550523994 3.04983843510579 2489699.848768364 1.30188754951286 66.3912662706375 11.4701493378784 -82.3903163850563 4256352.58899466 T 168 CATAB v2.0e-lin.ifort 2019-May-29 19:02:27 2019-May-29 19:02
2176-Feb-04 05:23 00:02 Jupiter 1.87438983035008 1.8743895306066 1.87439013009357 3.42419677851505 3.28958033514432 2515861.724093553 2.20505713520514 127.880330915022 11.910847476892 -87.3709534353206 4436102.57484209 T 168 CATAB v2.0e-lin.ifort 2019-May-29 19:02:27 2019-May-29 19:02
2186-Mar-16 06:46 00:02 Jupiter 1.98250300986749 1.98250241586681 1.98250360386805 2.94586938930389 2.79707854210791 2519554.782216772 2.3847612931044 30.7488913928618 19.4388375353796 -53.39498708276 3485333.36680951 T 168 CATAB v2.0e-lin.ifort 2019-May-29 19:02:27 2019-May-29 19:02

Alternate Designations
 1948 FE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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