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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 150 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07354021918584952 2.5795e-08  
a 3.109449041786672 7.9535e-09 AU
q 2.88077947770645 8.0674e-08 AU
i 6.547471344250873 3.0324e-06 deg
node 183.5798801995525 2.7521e-05 deg
peri 253.567681970974 3.4197e-05 deg
M 141.4663087398513 2.0437e-05 deg
tp 2456213.501121159202
(2012-Oct-13.00112116)
0.00011341 JED
period 2002.735484557644
5.48
7.6841e-06
2.104e-08
d
yr
n .1797541426592915 6.8968e-10 deg/d
Q 3.338118605866893 8.5384e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      1930  
   data-arc span      56701 days (155.24 yr)  
   first obs. used      1860-02-27  
   last obs. used      2015-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59741  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 15:26:51  

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-May); 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 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 1.89714255622021 1.89714242268812 1.89714268975457 3.70026487222218 3.57757104187613 2433677.257309270 1.93391372015555 4.79747133730173 2.17138085555109 -32.1751502207141 5298713.5749184 T 150 CATAB v2.0c-linF95 2015-Jun-04 15:26:59 2015-Jun-04 15:27
1961-Mar-15 14:02 00:02 Jupiter 1.943827271316 1.94382700441936 1.9438275382109 2.90326002851424 2.74907602970989 2437374.084604264 2.27065684929056 2.78098525507199 1.33597169220135 -1.42046737688116 5080157.81237783 T 150 CATAB v2.0c-linF95 2015-Jun-04 15:26:59 2015-Jun-04 15:27
2022-Sep-11 11:31 < 00:01 Jupiter 1.91720508076454 1.91720489287451 1.91720526865443 3.95485885059618 3.84152406739698 2459833.979859862 0.669772335350429 3.3593171219273 1.89451808486033 -10.1081464613374 5828509.99784959 T 150 CATAB v2.0c-linF95 2015-Jun-04 15:26:59 2015-Jun-04 15:27
2032-Oct-31 20:24 00:01 Jupiter 1.91280621259308 1.91280595585556 1.91280646932975 2.99785779788516 2.84631656640603 2463537.350124400 1.45851100073779 2.9930788975021 1.41405737972383 -6.30679502891935 4889412.59587985 T 150 CATAB v2.0c-linF95 2015-Jun-04 15:26:59 2015-Jun-04 15:27
2094-Apr-22 05:17 00:03 Jupiter 1.95512915830358 1.95512789972892 1.95513041687875 4.17311989998372 4.06798079460007 2485989.719888140 2.85601407841826 6.33603841336167 2.88434052447307 -55.813677645923 6124703.37181655 T 150 CATAB v2.0c-linF95 2015-Jun-04 15:26:59 2015-Jun-04 15:27
2104-Jun-19 08:23 00:04 Jupiter 1.89106918537895 1.8910689662592 1.89106940449947 3.19332654938782 3.0498395197056 2489699.849614784 4.35723015831583 5.98346310450819 2.12642853611943 -37.5374652653394 4759732.45849092 T 150 CATAB v2.0c-linF95 2015-Jun-04 15:26:59 2015-Jun-04 15:27
2176-Feb-04 05:25 00:07 Jupiter 1.87438981035984 1.87438970937345 1.87438991135436 3.42419864514369 3.28958227669418 2515861.725449749 6.6974159064956 11.2242821495966 2.39864643561285 -46.6019236939991 4954163.87286554 T 150 CATAB v2.0c-linF95 2015-Jun-04 15:26:59 2015-Jun-04 15:27
2186-Mar-16 06:48 00:09 Jupiter 1.9825025501662 1.9825025269215 1.98250257341158 2.94586880940452 2.79707789594156 2519554.783675149 9.43459636278202 3.05043067355978 1.44432692534642 9.24839308908422 4995262.12840567 T 150 CATAB v2.0c-linF95 2015-Jun-04 15:26:59 2015-Jun-04 15:27

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