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 ]  
47 Aglaja (A857 RA)
Classification: Main-belt Asteroid          SPK-ID: 2000047
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 126 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1300387468691744 1.7023e-08  
a 2.882157178380443 6.0893e-09 au
q 2.507365070623854 4.7797e-08 au
i 4.975312193412775 2.3906e-07 deg
node 3.054048096334125 4.5794e-06 deg
peri 314.9733297615821 8.7737e-06 deg
M 212.3091099351905 1.0355e-05 deg
tp 2460129.706195334745
(2023-Jul-04.20619533)
5.275e-05 TDB
period 1787.207255672171
4.89
5.6639e-06
1.551e-08
d
yr
n .2014315904646457 6.3836e-10 deg/d
Q 3.256949286137031 6.8811e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3789  
   data-arc span      58929 days (161.34 yr)  
   first obs. used      1860-02-24  
   last obs. used      2021-06-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43214  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 10:27:17  

Additional Information
 Earth MOID = 1.49678 au 
 Jupiter MOID = 2.04894 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 8.16   n/a MPO614063 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. 2020-October); 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.]
[Pilcher, F. (2020) Minor Planet Bull. 47, 133-135.]
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 (A857 RA)          Discovered 1857-Sep-15 by Luther, R. at Dusseldorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A857 RA = 1948 EU = 1982 DX2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-28 18:44 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin