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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
756 Lilliana (A908 HD)
Classification: Main-belt Asteroid          SPK-ID: 2000756
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 50 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1484988757413991 3.1918e-08  
a 3.19467846135623 1.2544e-08 au
q 2.720272301489567 1.0057e-07 au
i 20.35463736481033 3.745e-06 deg
node 208.0670282749553 8.3022e-06 deg
peri 4.49079430898257 1.3091e-05 deg
M 163.4583761709723 1.1185e-05 deg
tp 2458053.513392971519
(2017-Oct-27.01339297)
6.363e-05 TDB
period 2085.639087553804
5.71
1.2284e-05
3.363e-08
d
yr
n .1726089629544848 1.0166e-09 deg/d
Q 3.669084621222893 1.4406e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2819  
   data-arc span      40789 days (111.67 yr)  
   first obs. used      1908-05-24  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41894  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:36:05  

Additional Information
 Earth MOID = 1.71531 au 
 Jupiter MOID = 1.29692 au 
 T_jup = 3.082 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455749.5 (2011-Jul-07.0) TDB
Reference: JPL 50 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1477602507211006 3.1924e-08  
q 2.724824675863646 1.007e-07 au
tp 2455972.813967607465
(2012-Feb-15.31396761)
6.3366e-05 TDB
node 208.1057865697491 8.3001e-06 deg
peri 5.630619784019739 1.3118e-05 deg
i 20.34992960568498 3.7445e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2819  
   data-arc span      40789 days (111.67 yr)  
   first obs. used      1908-05-24  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41894  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:36:05  

Additional Information
 Jupiter MOID = 1.29692 au 
 T_jup = 3.082 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.019156948580858E-15 -3.196709209116819E-15 2.135774378486097E-14 1.618480899561055E-15 2.858598152637387E-15 1.437250370846592E-16
q -3.196709209116819E-15 1.014136094769387E-14 -1.146406614949039E-13 -4.722972999451284E-15 -1.899784804190083E-14 1.415000992248471E-16
tp 2.135774378486097E-14 -1.146406614949039E-13 4.015294201323922E-9 9.289936657422642E-13 6.534672343252874E-10 -2.057282680457199E-13
node 1.618480899561055E-15 -4.722972999451284E-15 9.289936657422642E-13 6.889177691851632E-11 -6.430538426612945E-11 1.754390124258003E-12
peri 2.858598152637387E-15 -1.899784804190083E-14 6.534672343252874E-10 -6.430538426612945E-11 1.720767490109715E-10 -1.664117619369169E-12
i 1.437250370846592E-16 1.415000992248471E-16 -2.057282680457199E-13 1.754390124258003E-12 -1.664117619369169E-12 1.402146375191388E-11

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 9.9   n/a MPO302062  
diameter diameter 64.837 km 0.499 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 7.834 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2001) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pilcher, F. (2012) Minor Planet Bull. 39, 220-222.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.057   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

756 Lilliana (A908 HD)          Discovered 1908-Apr-26 by Metcalf, J. H. at Taunton
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A908 HD = 1949 HJ1 = 1966 FE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-01 02:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin