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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 149 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07354021707564343 2.5807e-08  
a 3.109449043366964 7.9736e-09 AU
q 2.880779485732106 8.0727e-08 AU
i 6.547471176348924 3.0431e-06 deg
node 183.5798797931697 2.7559e-05 deg
peri 253.5676771570857 3.4265e-05 deg
M 141.4663129958 2.048e-05 deg
tp 2456213.501096882747
(2012-Oct-13.00109688)
0.00011367 JED
period 2002.735486084397
5.48
7.7034e-06
2.109e-08
d
yr
n .1797541425222588 6.9142e-10 deg/d
Q 3.338118601001822 8.5599e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      1907  
   data-arc span      56619 days (155.01 yr)  
   first obs. used      1860-02-27  
   last obs. used      2015-03-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59657  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 15:57:59  

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 1.89714256976591 1.89714243572178 1.8971427038123 3.70026492944961 3.57757110195725 2433677.257279772 1.93876884646963 4.81815448602919 2.17358273553854 -32.0989239415816 5281488.37407353 T 149 CATAB v2.0c-linF95 2015-Apr-07 15:58:06 2015-Apr-07 15:58
1961-Mar-15 14:02 00:02 Jupiter 1.94382728976812 1.94382702190654 1.94382755763087 2.90326011185402 2.7490761192285 2437374.084571231 2.27474147940851 2.78975672693925 1.3392763945727 -1.48968944661641 5064702.9723957 T 149 CATAB v2.0c-linF95 2015-Apr-07 15:58:06 2015-Apr-07 15:58
2022-Sep-11 11:31 < 00:01 Jupiter 1.91720509889578 1.91720491075516 1.91720528703692 3.95485894450595 3.84152416516497 2459833.979872369 0.671536757008256 3.36313685615479 1.89871103900432 -9.96433201365935 5816328.90956583 T 149 CATAB v2.0c-linF95 2015-Apr-07 15:58:06 2015-Apr-07 15:58
2032-Oct-31 20:24 00:01 Jupiter 1.91280622492844 1.9128059677128 1.9128064821449 2.99785794571437 2.84631672310912 2463537.350157883 1.46443011691702 2.99770106953267 1.41849616062305 -6.25373364037882 4879870.12081075 T 149 CATAB v2.0c-linF95 2015-Apr-07 15:58:06 2015-Apr-07 15:58
2094-Apr-22 05:17 00:03 Jupiter 1.95512918883433 1.95512792964888 1.95513044802029 4.17312003028335 4.06798092993039 2485989.719940617 2.86408518647203 6.34600957319203 2.8920398685972 -55.915206438473 6114310.12320212 T 149 CATAB v2.0c-linF95 2015-Apr-07 15:58:06 2015-Apr-07 15:58
2104-Jun-19 08:24 00:04 Jupiter 1.89106919614533 1.89106897727528 1.89106941501692 3.19332674478382 3.0498397251306 2489699.849683970 4.37092913398795 5.99097246726705 2.13550631285387 -37.6150487281561 4748072.40164034 T 149 CATAB v2.0c-linF95 2015-Apr-07 15:58:06 2015-Apr-07 15:58
2176-Feb-04 05:25 00:07 Jupiter 1.87438982828141 1.87438972817377 1.87438992839723 3.42419887591179 3.28958251821922 2515861.725554146 6.71729483849553 11.2470512191063 2.40801125160831 -46.6560069441181 4939321.80681856 T 149 CATAB v2.0c-linF95 2015-Apr-07 15:58:06 2015-Apr-07 15:58
2186-Mar-16 06:49 00:09 Jupiter 1.98250252229218 1.982502500983 1.98250254360584 2.94586881721592 2.79707790202084 2519554.783790576 9.46387591660343 3.06143901482888 1.44864917188663 9.29915442094385 4979822.1901244 T 149 CATAB v2.0c-linF95 2015-Apr-07 15:58:06 2015-Apr-07 15:58

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