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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 151 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07354022102276779 2.578e-08  
a 3.109449040232346 7.9252e-09 AU
q 2.880779470554626 8.0604e-08 AU
i 6.547471820713992 3.0154e-06 deg
node 183.579878244301 2.7486e-05 deg
peri 253.5676883577376 3.4114e-05 deg
M 141.4663051531114 2.0374e-05 deg
tp 2456213.501141702886
(2012-Oct-13.00114170)
0.00011304 JED
period 2002.735483055978
5.48
7.6567e-06
2.096e-08
d
yr
n .1797541427940725 6.8722e-10 deg/d
Q 3.338118609910066 8.508e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      1982  
   data-arc span      56728 days (155.31 yr)  
   first obs. used      1860-02-27  
   last obs. used      2015-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5941  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 11:33:04  

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 1.89714254281549 1.8971424101298 1.89714267550342 3.70026493560897 3.577571106555 2433677.257343648 1.92698573475374 4.7667718838724 2.16881924339997 -32.2918335375729 5323539.61117423 T 151 CATAB v2.0c-linF95 2015-Jul-06 11:33:13 2015-Jul-06 11:33
1961-Mar-15 14:02 00:02 Jupiter 1.94382725988329 1.94382699438477 1.94382752538299 2.90325996036713 2.74907595680843 2437374.084625810 2.26490310846499 2.76868645990914 1.33052463782666 -1.31069333733085 5101958.26663512 T 151 CATAB v2.0c-linF95 2015-Jul-06 11:33:13 2015-Jul-06 11:33
2022-Sep-11 11:31 < 00:01 Jupiter 1.91720506469837 1.91720487722178 1.91720525217567 3.95485878366389 3.84152399752627 2459833.979843338 0.667273412506214 3.35306422866039 1.88940024663756 -10.31486873379 5847183.60042295 T 151 CATAB v2.0c-linF95 2015-Jul-06 11:33:13 2015-Jul-06 11:33
2032-Oct-31 20:24 00:01 Jupiter 1.91280620462362 1.91280594860207 1.91280646064604 2.99785772619357 2.84631649024931 2463537.350106867 1.45000333465651 2.98691324932754 1.40682902130887 -6.37182748084684 4902288.58260209 T 151 CATAB v2.0c-linF95 2015-Jul-06 11:33:13 2015-Jul-06 11:33
2094-Apr-22 05:17 00:03 Jupiter 1.95512913249752 1.95512787489764 1.9551303900979 4.17311986163638 4.06798075385594 2485989.719846632 2.84452096708862 6.3224757065986 2.87269656215044 -55.6746269150204 6141128.04317009 T 151 CATAB v2.0c-linF95 2015-Jul-06 11:33:13 2015-Jul-06 11:33
2104-Jun-19 08:23 00:04 Jupiter 1.89106917675789 1.891068957279 1.89106939623833 3.19332642341108 3.04983938713246 2489699.849552894 4.33764098970145 5.97303600339161 2.11348907872549 -37.4186623019851 4775803.18028528 T 151 CATAB v2.0c-linF95 2015-Jul-06 11:33:13 2015-Jul-06 11:33
2176-Feb-04 05:24 00:07 Jupiter 1.87438979506523 1.87438969278186 1.87438989735571 3.42419841535682 3.28958203638304 2515861.725334135 6.66902666099185 11.1921578608695 2.38544606543438 -46.5215981869113 4974961.40657806 T 151 CATAB v2.0c-linF95 2015-Jul-06 11:33:13 2015-Jul-06 11:33
2186-Mar-16 06:48 00:09 Jupiter 1.98250258135434 1.98250255527258 1.98250260743911 2.94586881891961 2.7970779083658 2519554.783546219 9.39272798253011 3.03483929803016 1.43740439958281 9.17410043227253 5017528.83276325 T 151 CATAB v2.0c-linF95 2015-Jul-06 11:33:13 2015-Jul-06 11:33

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