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JPL Small-Body Database Browser
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47 Aglaja
Classification: Main-belt Asteroid          SPK-ID: 2000047
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 114 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .129946999878932 3.0066e-08  
a 2.882273729483078 7.0768e-09 au
q 2.507730905506892 8.7062e-08 au
i 4.974553307182375 3.8742e-06 deg
node 3.066449276509552 3.9701e-05 deg
peri 314.8373092612482 4.2735e-05 deg
M 132.7057265422207 1.6432e-05 deg
tp 2458341.647155634340
(2018-Aug-11.14715563)
8.0999e-05 TDB
period 1787.315665659505
4.89
6.5825e-06
1.802e-08
d
yr
n .2014193725914458 7.4181e-10 deg/d
Q 3.256816553459265 7.9964e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3123  
   data-arc span      58417 days (159.94 yr)  
   first obs. used      1860-02-24  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47055  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:15:31  

Additional Information
 Earth MOID = 1.49781 au 
 Jupiter MOID = 2.0497 au 
 T_jup = 3.276 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 8.1   n/a MPO502153 IRAS observations used: 20
magnitude slope G 0.16   n/a PDS3 (MPC 17257) Fit
diameter diameter 168.174 km 1.222 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 13.178 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Debehogne, H. (1979) Messenger 18, 27-28.]
[Harris, A.W.; Young, J.W. (1989) Icarus 81, 314-364.]
[Millis, R.L.; Wasserman, L.H.; Bowell, E.; Harris, A.W.; et al. (1989) Icarus 81, 375-385.]
[Chernova, G.P.; Lupishko, D.F.; Shevchenko, V.G.; Kiselev, N.N.; Saljes, R. (1991) Kin. Fiz. Neb. Tel 7, 20-26; Kinematics and Physics of Celestial Bodies 7, 15-21.]
[Michalowski, T. (1996) Icarus 123, 456-462.]
[Pilcher, F. (2012) Minor Planet Bull. 39, 220-222.]
geometric albedo albedo 0.082   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.665   0.015 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=7.07, mean=12.75, max.=18.61) deg.
U-B UB 0.300   0.016 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=7.07, mean=12.75, max.=18.61) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B B   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)

47 Aglaja          Discovered 1857-Sep-15 by Luther, R. at Dusseldorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1948 EU = 1982 DX2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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