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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 147 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07354021593209568 2.5847e-08  
a 3.109449043647541 7.9816e-09 AU
q 2.880779489547852 8.0871e-08 AU
i 6.547471246631596 3.0439e-06 deg
node 183.5798777606438 2.7616e-05 deg
peri 253.5676789469268 3.4314e-05 deg
M 141.4663130481386 2.0484e-05 deg
tp 2456213.501096485059
(2012-Oct-13.00109649)
0.00011369 JED
period 2002.735486355469
5.48
7.7112e-06
2.111e-08
d
yr
n .179754142497929 6.9212e-10 deg/d
Q 3.33811859774723 8.5686e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      1877  
   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      .60074  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 12:51:42  

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-Feb); 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 18:10 00:02 Jupiter 1.89714256793581 1.8971424339672 1.89714270190669 3.7002648713508 3.57757104174555 2433677.257264113 1.94029408311064 4.82197056473735 2.17532242516827 -32.1093398263284 5278083.98212369 T 147 CATAB v2.0c-linF95 2015-Feb-04 12:51:50 2015-Feb-04 12:51
1961-Mar-15 14:02 00:02 Jupiter 1.94382729335345 1.9438270250469 1.94382756166006 2.90326013724354 2.74907614633437 2437374.084576285 2.27592725950181 2.79466822149245 1.33946121708525 -1.49847192407294 5055891.75196464 T 147 CATAB v2.0c-linF95 2015-Feb-04 12:51:50 2015-Feb-04 12:51
2022-Sep-11 11:31 < 00:01 Jupiter 1.91720509775977 1.91720490961548 1.91720528590391 3.95485890962361 3.84152412918537 2459833.979865594 0.672026562940393 3.36363457394933 1.90155017820663 -9.97008006727788 5814984.70163368 T 147 CATAB v2.0c-linF95 2015-Feb-04 12:51:50 2015-Feb-04 12:51
2032-Oct-31 20:24 00:01 Jupiter 1.91280622599297 1.91280596867519 1.91280648331096 2.99785795703252 2.84631673511644 2463537.350153623 1.46623657554261 2.99949714863164 1.41979911153217 -6.20659403307657 4875451.04405084 T 147 CATAB v2.0c-linF95 2015-Feb-04 12:51:50 2015-Feb-04 12:51
2094-Apr-22 05:17 00:03 Jupiter 1.95512919045193 1.95512793038848 1.95513045051588 4.17312002557077 4.06798092518413 2485989.719946645 2.8665133619414 6.35214674624359 2.89296550351052 -55.9200331908515 6112261.57426255 T 147 CATAB v2.0c-linF95 2015-Feb-04 12:51:50 2015-Feb-04 12:51
2104-Jun-19 08:24 00:04 Jupiter 1.89106919550458 1.89106897676101 1.8910694142489 3.19332678594162 3.04983976817501 2489699.849693904 4.37501252703981 5.99274151300643 2.13890661277755 -37.6399151130357 4743547.31614753 T 147 CATAB v2.0c-linF95 2015-Feb-04 12:51:50 2015-Feb-04 12:51
2176-Feb-04 05:25 00:07 Jupiter 1.87438982778475 1.87438972791337 1.87438992766431 3.42419892151468 3.28958256565187 2515861.725570304 6.72322326442786 11.2542128149519 2.4105850063957 -46.6714036934012 4935285.90953036 T 147 CATAB v2.0c-linF95 2015-Feb-04 12:51:50 2015-Feb-04 12:51
2186-Mar-16 06:49 00:09 Jupiter 1.98250251997048 1.98250249916385 1.98250254078393 2.94586881224361 2.79707789660514 2519554.783817640 9.4729498672905 3.06964149240603 1.44895909888783 9.31509676732781 4968491.4369687 T 147 CATAB v2.0c-linF95 2015-Feb-04 12:51:50 2015-Feb-04 12:51

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