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 ]  
620 Drakonia (A906 UO)
Classification: Main-belt Asteroid          SPK-ID: 2000620
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1344058414071706 3.6024e-08  
a 2.435439959555675 6.4069e-09 au
q 2.108102602594949 8.7355e-08 au
i 7.736568322310704 4.2023e-06 deg
node 359.9460839786989 2.5156e-05 deg
peri 336.1850760010051 2.9537e-05 deg
M 63.42985413494252 1.5523e-05 deg
tp 2458955.900378887064
(2020-Apr-16.40037889)
5.9873e-05 TDB
period 1388.240045662476
3.80
5.4781e-06
1.5e-08
d
yr
n .259321146313861 1.0233e-09 deg/d
Q 2.762777316516401 7.268e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3842  
   data-arc span      32856 days (89.95 yr)  
   first obs. used      1931-03-27  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .35056  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 11:11:21  

Additional Information
 Earth MOID = 1.09985 au 
 Jupiter MOID = 2.61523 au 
 T_jup = 3.480 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456799.5 (2014-May-22.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1344201169091732 3.6007e-08  
q 2.108914121311955 8.7419e-08 au
tp 2456180.505109996826
(2012-Sep-10.00511000)
6.1474e-05 TDB
node .02838297895726223 2.5154e-05 deg
peri 336.5103291592666 2.9545e-05 deg
i 7.736309795540398 4.2024e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3842  
   data-arc span      32856 days (89.95 yr)  
   first obs. used      1931-03-27  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .35056  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 11:11:21  

Additional Information
 Jupiter MOID = 2.61523 au 
 T_jup = 3.480 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.296523801512193E-15 -3.141178363542099E-15 8.675136000065404E-13 4.402898456083837E-15 1.866326027513908E-13 -1.079839939193004E-15
q -3.141178363542099E-15 7.64203616084722E-15 -2.198558864514237E-12 -1.126466874214263E-14 -4.743395363160919E-13 2.68338720891842E-15
tp 8.675136000065404E-13 -2.198558864514237E-12 3.778993484111219E-9 3.282929667047186E-13 9.612570254216133E-10 -2.93590581840241E-12
node 4.402898456083837E-15 -1.126466874214263E-14 3.282929667047186E-13 6.327474837790668E-10 -6.264296045106065E-10 2.676477799565984E-11
peri 1.866326027513908E-13 -4.743395363160919E-13 9.612570254216133E-10 -6.264296045106065E-10 8.728874312162442E-10 -2.727337828326144E-11
i -1.079839939193004E-15 2.68338720891842E-15 -2.93590581840241E-12 2.676477799565984E-11 -2.727337828326144E-11 1.76597842804058E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.97   n/a E2021B10  
diameter diameter 11.385 km 0.157 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.487 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2002) Minor Planet Bull. 29, 27-28.]
[Bel'skaya, I.N.; Shevchenko, V.G.; Kiselev, N.; Krugly, Yu.N.; et al. (2003) Icarus 166, 276-284.]
[Almeida, R.; Angeli, C.A.; Duffard, R.; Lazzaro, D. (2004) Astron. Astrophys. 415, 403-406.]
[Li, B.; Zhao, H.; Yao, J. (2011) Minor Planet Bull. 38, 179-180.]
[Warner, B.D. (2011) Minor Planet Bull. 38, 52-54.]
[Klinglesmith III, D.A.; Hanowell, J.; Risley, E.; Turk, J.; et al. (2014) Minor Planet Bull. 41, 139-143.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.419   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.683   0.033 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=1.51 deg.
U-B UB 0.237   0.035 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=1.51 deg.
Tholen spectral type spec_T E   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices; used ground-based radiometric albedo

620 Drakonia (A906 UO)          Discovered 1906-Oct-26 by Metcalf, J. H. at Taunton
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A906 UO = 1950 ET = 1950 HS = 1955 QE1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-21 15:28 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin