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48 Doris
Classification: Main-belt Asteroid          SPK-ID: 2000048
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 145 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0735402163891191 2.5874e-08  
a 3.109449043525904 7.9846e-09 AU
q 2.88077948801407 8.0962e-08 AU
i 6.547471224330167 3.0456e-06 deg
node 183.5798783892293 2.7655e-05 deg
peri 253.5676786877742 3.4352e-05 deg
M 141.4663127669298 2.0494e-05 deg
tp 2456213.501098095646
(2012-Oct-13.00109810)
0.00011375 JED
period 2002.735486237953
5.48
7.7141e-06
2.112e-08
d
yr
n .1797541425084765 6.9238e-10 deg/d
Q 3.338118599037739 8.5718e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      1859  
   data-arc span      56388 days (154.38 yr)  
   first obs. used      1860-02-27  
   last obs. used      2014-07-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60309  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 13:51:03  

Additional Information
 Earth MOID = 1.90435 AU 
 T_jup = 3.205 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 6.90 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 10
diameter diameter 221.80 km 7.5 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 10
rotation period rot_per 11.89 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) 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 Bul. 36, 143-144.]
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.0624   0.004 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 10
B-V BV .716 mag .012 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=9; phase (min.=3.85, mean=7.88, max.=12.86) deg.
U-B UB .442 mag .016 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #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 18:10 00:02 Jupiter 1.89714256740451 1.89714243336664 1.89714270144465 3.70026488586178 3.57757105671923 2433677.257269222 1.94085877642942 4.82482284185566 2.17679154392273 -32.0955220968581 5273607.28731126 T 145 CATAB v2.0c-linF95 2014-Aug-13 13:51:11 2014-Aug-13 13:51
1961-Mar-15 14:02 00:02 Jupiter 1.94382729109542 1.94382702237125 1.94382755982076 2.90326011962141 2.74907612753976 2437374.084568377 2.27627341031888 2.79931502044824 1.33989286061173 -1.49848223533095 5047518.57148467 T 145 CATAB v2.0c-linF95 2014-Aug-13 13:51:11 2014-Aug-13 13:51
2022-Sep-11 11:31 < 00:01 Jupiter 1.91720509708577 1.91720490892353 1.91720528524872 3.95485889413404 3.84152411319838 2459833.979863469 0.672222286226798 3.36424105051477 1.90343080753271 -9.9467709701982 5812728.04056329 T 145 CATAB v2.0c-linF95 2014-Aug-13 13:51:11 2014-Aug-13 13:51
2032-Oct-31 20:24 00:01 Jupiter 1.91280622479384 1.91280596724955 1.91280648233834 2.99785793638967 2.84631671327701 2463537.350149876 1.46715719790817 3.00228913590324 1.42067314646677 -6.16379333569602 4869711.36350594 T 145 CATAB v2.0c-linF95 2014-Aug-13 13:51:11 2014-Aug-13 13:51
2094-Apr-22 05:17 00:03 Jupiter 1.95512918744194 1.95512792715635 1.95513044772804 4.17312002058808 4.0679809199087 2485989.719943566 2.86744183053785 6.35400582029253 2.89415095693229 -55.9308973525477 6110389.14707633 T 145 CATAB v2.0c-linF95 2014-Aug-13 13:51:11 2014-Aug-13 13:51
2104-Jun-19 08:24 00:04 Jupiter 1.89106919486834 1.89106897610455 1.89106941363367 3.19332675525103 3.04983973599109 2489699.849685595 4.37670629079988 5.99320699231056 2.14211219841924 -37.643180085478 4737902.18579733 T 145 CATAB v2.0c-linF95 2014-Aug-13 13:51:11 2014-Aug-13 13:51
2176-Feb-04 05:25 00:07 Jupiter 1.87438982653226 1.87438972676602 1.8743899263083 3.42419890622007 3.28958254963958 2515861.725561114 6.72558142027181 11.2563181909359 2.41363042118676 -46.6792011551505 4929852.30695473 T 145 CATAB v2.0c-linF95 2014-Aug-13 13:51:11 2014-Aug-13 13:51
2186-Mar-16 06:49 00:09 Jupiter 1.98250252393737 1.98250250315222 1.98250254471944 2.94586882351721 2.79707790878409 2519554.783797825 9.47668518988756 3.07525031936628 1.44956772064525 9.31505738852105 4960161.51287501 T 145 CATAB v2.0c-linF95 2014-Aug-13 13:51:11 2014-Aug-13 13:51

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