Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
48 Doris (A857 SA)
Classification: Main-belt Asteroid          SPK-ID: 2000048
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 173 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07202362109942717 2.7697e-08  
a 3.110067743475097 6.9709e-09 au
q 2.886069402725497 8.5287e-08 au
i 6.547502443125629 2.9979e-06 deg
node 183.5457033894221 2.7844e-05 deg
peri 252.7683730208703 3.5858e-05 deg
M 177.5538467231966 2.3004e-05 deg
tp 2458212.445762047108
(2018-Apr-03.94576205)
0.00012755 TDB
period 2003.333254827031
5.48
6.7354e-06
1.844e-08
d
yr
n .1797005062101276 6.0417e-10 deg/d
Q 3.334066084224698 7.473e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3383  
   data-arc span      58662 days (160.61 yr)  
   first obs. used      1860-02-27  
   last obs. used      2020-10-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49952  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:34:00  

Additional Information
 Earth MOID = 1.9093 au 
 Jupiter MOID = 1.88385 au 
 T_jup = 3.205 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 7.18   n/a E2021B10 IRAS observations used: 10
diameter diameter 216.473 km 4.757 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 11.89 h n/a LCDB (Rev. 2020-October); 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 Bull. 36, 143-144.]
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Viikinkoski, M.; Hanus, J.; Kaasalainen, M.; Marchis, F.; Durech, J. (2017) Astron. Astrophys. 607, A117.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.065   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.716   0.012 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=9; phase (min.=3.85, mean=7.88, max.=12.86) deg.
U-B UB 0.442   0.016 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #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 (A857 SA)          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 < 00:01 Jupiter 1.89714255502994 1.89714228446498 1.8971428255949 3.70026559626321 3.57757179067006 2433677.257388468 0.631894388231137 44.7538242580918 11.215036295121 -87.5545715609405 5182396.90901306 T 173 CATAB v2.0f-lin.ifort 2020-Nov-13 04:34:09 2020-Nov-13 04:34
1961-Mar-15 14:02 < 00:01 Jupiter 1.94382728404606 1.94382698333893 1.94382758475319 2.90325987363352 2.74907586718063 2437374.084695314 0.531812169044268 28.1792827634384 8.18068203986244 -75.2129254730628 4821710.30895728 T 173 CATAB v2.0f-lin.ifort 2020-Nov-13 04:34:09 2020-Nov-13 04:34
2022-Sep-11 11:31 < 00:01 Jupiter 1.91720506645034 1.91720480220627 1.91720533069441 3.9548592484779 3.84152447615857 2459833.979661809 0.22229501275311 29.0844017744527 11.2799108061394 -89.3204925309168 5469111.45788331 T 173 CATAB v2.0f-lin.ifort 2020-Nov-13 04:34:09 2020-Nov-13 04:34
2032-Oct-31 20:24 < 00:01 Jupiter 1.9128062949854 1.9128059886584 1.9128066013124 2.99785766514207 2.8463164332968 2463537.349836856 0.340073152378235 28.456093326436 9.54466822207455 -76.1643199065729 4718474.74615367 T 173 CATAB v2.0f-lin.ifort 2020-Nov-13 04:34:09 2020-Nov-13 04:34
2094-Apr-22 05:16 < 00:01 Jupiter 1.95512897311767 1.95512861066918 1.95512933556659 4.17311953434025 4.06798040941909 2485989.719213695 0.979213505748568 66.7005015742653 11.5997606488159 80.5442769141632 5544299.67602321 T 173 CATAB v2.0f-lin.ifort 2020-Nov-13 04:34:09 2020-Nov-13 04:34
2104-Jun-19 08:22 00:01 Jupiter 1.89106926292319 1.89106895416882 1.89106957167767 3.19332578251561 3.0498387227762 2489699.848838415 1.14866987509305 59.5171184808179 10.5922353348855 -81.1708409275593 4611509.30790685 T 173 CATAB v2.0f-lin.ifort 2020-Nov-13 04:34:09 2020-Nov-13 04:34
2176-Feb-04 05:23 00:02 Jupiter 1.87438980649115 1.8743895235877 1.8743900893946 3.42419721716256 3.28958078999361 2515861.724224017 1.94816811015778 113.45787856407 11.1534776873981 -86.7883985172881 4686416.05508631 T 173 CATAB v2.0f-lin.ifort 2020-Nov-13 04:34:09 2020-Nov-13 04:34
2186-Mar-16 06:47 00:02 Jupiter 1.98250295330415 1.98250239099367 1.98250351561462 2.94586914382786 2.79707827921566 2519554.782362518 2.0976971561206 29.2699740572274 18.5742747418317 -56.0005733889836 3605168.83337242 T 173 CATAB v2.0f-lin.ifort 2020-Nov-13 04:34:09 2020-Nov-13 04:34

Alternate Designations
 A857 SA = 1948 FE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-08 01:02 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin