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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 152 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07354022104815289 2.578e-08  
a 3.109449040251699 7.9248e-09 AU
q 2.880779470493623 8.0603e-08 AU
i 6.54747181398949 3.0152e-06 deg
node 183.579878261308 2.7486e-05 deg
peri 253.5676883203605 3.4113e-05 deg
M 141.4663051756963 2.0373e-05 deg
tp 2456213.501141569895
(2012-Oct-13.00114157)
0.00011304 JED
period 2002.735483074676
5.48
7.6563e-06
2.096e-08
d
yr
n .1797541427923943 6.8719e-10 deg/d
Q 3.338118610009776 8.5076e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      1992  
   data-arc span      56787 days (155.47 yr)  
   first obs. used      1860-02-27  
   last obs. used      2015-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59261  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 13:53:40  

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 LCDB (Rev. 2015-July); Warner et al., 2009 Published Reference List:
[Harris, A.W.; Young, J.W. (1980) Icarus 43, 20-32.]
[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 18:11 00:02 Jupiter 1.89714254402452 1.89714241134982 1.89714267670147 3.70026489328992 3.57757106286414 2433677.257335784 1.92689623595044 4.76637239655487 2.16879757126052 -32.2932650122189 5323838.03916683 T 152 CATAB v2.0c-linF95 2015-Sep-02 13:53:47 2015-Sep-02 13:53
1961-Mar-15 14:02 00:02 Jupiter 1.94382726042081 1.943826994937 1.94382752590289 2.90325996347119 2.74907596013041 2437374.084624329 2.26482816724073 2.76854420369467 1.33045075886198 -1.30939478490712 5102211.83153536 T 152 CATAB v2.0c-linF95 2015-Sep-02 13:53:47 2015-Sep-02 13:53
2022-Sep-11 11:31 < 00:01 Jupiter 1.91720506477332 1.91720487730243 1.91720525224354 3.95485881573443 3.84152403054747 2459833.979849670 0.667240318621246 3.35297697676873 1.88934594526374 -10.3171982296623 5847421.02719035 T 152 CATAB v2.0c-linF95 2015-Sep-02 13:53:47 2015-Sep-02 13:53
2032-Oct-31 20:24 00:01 Jupiter 1.91280620461732 1.91280594860457 1.91280646063028 2.9978577291657 2.84631649337916 2463537.350108058 1.44989360107907 2.98684635639064 1.40672566226886 -6.37250073962764 4902432.38841319 T 152 CATAB v2.0c-linF95 2015-Sep-02 13:53:47 2015-Sep-02 13:53
2094-Apr-22 05:17 00:03 Jupiter 1.95512913189663 1.95512787430983 1.95513038948394 4.17311980397548 4.06798069467202 2485989.719832794 2.84437114900557 6.32230335717274 2.87254759876003 -55.672891691359 6141340.88939917 T 152 CATAB v2.0c-linF95 2015-Sep-02 13:53:47 2015-Sep-02 13:53
2104-Jun-19 08:23 00:04 Jupiter 1.89106917755305 1.89106895806965 1.89106939703799 3.19332641519845 3.0498393785952 2489699.849548622 4.33738650108061 5.97289459601413 2.11333096444851 -37.4170172696421 4775987.23300313 T 152 CATAB v2.0c-linF95 2015-Sep-02 13:53:47 2015-Sep-02 13:53
2176-Feb-04 05:24 00:07 Jupiter 1.87438979519622 1.87438969289859 1.87438989750352 3.42419844664022 3.28958206895623 2515861.725338716 6.66865701778422 11.1917313564431 2.38529154288307 -46.5205609496071 4975199.71806737 T 152 CATAB v2.0c-linF95 2015-Sep-02 13:53:47 2015-Sep-02 13:53
2186-Mar-16 06:48 00:09 Jupiter 1.98250258311098 1.98250255698629 1.98250260923025 2.94586882336396 2.79707791318191 2519554.783545920 9.39218484653302 3.03465819463434 1.43731371940914 9.17302808531855 5017783.55672163 T 152 CATAB v2.0c-linF95 2015-Sep-02 13:53:47 2015-Sep-02 13:53

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