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
JPL Small-Body Database Browser
Search: [ help ]  
616 Elly (A906 UK)
Classification: Main-belt Asteroid          SPK-ID: 2000616
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.

[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0594149237162681 3.6065e-08  
a 2.552826664187405 8.1501e-09 au
q 2.401150662673855 9.5019e-08 au
i 14.9575698426503 6.3235e-06 deg
node 355.9871254238984 1.2625e-05 deg
peri 109.2686084682015 5.9153e-05 deg
M 235.0681339170887 5.6488e-05 deg
tp 2459517.512620095974
0.00023385 TDB
period 1489.808397731197
n .2416418114894758 1.1572e-09 deg/d
Q 2.704502665700954 8.6344e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3564  
   data-arc span      41662 days (114.06 yr)  
   first obs. used      1906-10-08  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36655  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:27:39  

Additional Information
 Earth MOID = 1.45681 au 
 Jupiter MOID = 2.35968 au 
 T_jup = 3.389 
[ 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 10.6   n/a MPO492756 IRAS observations used: 2
diameter diameter 21.170 km 0.212 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 5.297 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Alvarez-Candal, A.; Duffard, R.; Angeli, C.A.; Lazzaro, D.; Fernandez, S. (2004) Icarus 172, 388-401.]
[Durkee, R.I. (2010) Minor Planet Bull. 37, 125-127.]
[Warner, B.D. (2010) Minor Planet Bull. 37, 112-118.]
[Mikulecka, B. (2011) Entry on CALL site.]
[Hanus, J.; Broz, M.; Durech, J.; Warner, B.D.; et al. (2013) Astron. Astrophys. 559, A134.]
[Klinglesmith III, D.A.; Hanowell, J.; Risley, E.; Turk, J.; et al. (2014) Minor Planet Bull. 41, 139-143.]
[Stephens, R.D. (2014) Minor Planet Bull. 41, 171-175.]
[Schmidt, R.E. (2015) Minor Planet Bull. 42, 1-3.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Durech, J.; Hanus, J.; Broz, M.; Lehky, M.; et al. (2017) Icarus 304, 101-109.]
geometric albedo albedo 0.211   0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
B-V BV 0.889   0.014 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=9.54, mean=11.96, max.=14.37) deg.
U-B UB 0.442   0.044 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=9.54, mean=11.96, max.=14.37) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo

616 Elly (A906 UK)          Discovered 1906-Oct-17 by Kopff, A. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A906 UK = A908 DB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
FirstGov 2020-Nov-25 03:15 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin