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 ]  
1010 Marlene (A923 VH)
Classification: Main-belt Asteroid          SPK-ID: 2001010
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 55 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1041077815418869 2.1318e-08  
a 2.931187795349372 9.039e-09 au
q 2.626028336692895 6.2276e-08 au
i 3.906939064393468 2.6002e-07 deg
node 98.73999686383668 1.4009e-05 deg
peri 279.6298696162251 1.6413e-05 deg
M 141.6931686006697 9.9063e-06 deg
tp 2458479.043245205382
(2018-Dec-26.54324521)
4.8995e-05 TDB
period 1833.006024856692
5.02
8.4788e-06
2.321e-08
d
yr
n .1963986997959515 9.0847e-10 deg/d
Q 3.23634725400585 9.9801e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3571  
   data-arc span      42876 days (117.39 yr)  
   first obs. used      1903-10-27  
   last obs. used      2021-03-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40918  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 11:47:50  

Additional Information
 Earth MOID = 1.6302 au 
 Jupiter MOID = 2.22793 au 
 T_jup = 3.265 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456415.5 (2013-May-03.0) TDB
Reference: JPL 55 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1006379437109103 2.0912e-08  
q 2.636604672838355 6.0689e-08 au
tp 2456635.989158206077
(2013-Dec-09.48915821)
4.8572e-05 TDB
node 98.92081649797643 1.3972e-05 deg
peri 277.8722453766276 1.6612e-05 deg
i 3.911109190384208 2.6099e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3571  
   data-arc span      42876 days (117.39 yr)  
   first obs. used      1903-10-27  
   last obs. used      2021-03-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40918  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 11:47:50  

Additional Information
 Jupiter MOID = 2.22793 au 
 T_jup = 3.265 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.373109017762481E-16 -1.257760552070699E-15 7.328002023897725E-13 9.977998904012457E-15 9.434350458660908E-14 -1.866200827158489E-16
q -1.257760552070699E-15 3.683188109867879E-15 -2.031059713634943E-12 -3.344641637888353E-14 -2.493760838404728E-13 4.427689426584094E-16
tp 7.328002023897725E-13 -2.031059713634943E-12 2.359218050405253E-9 -5.886267221121116E-11 4.391442439368128E-10 5.946735259475851E-13
node 9.977998904012457E-15 -3.344641637888353E-14 -5.886267221121116E-11 1.952219231373534E-10 -2.04169189300235E-10 2.877962407298918E-12
peri 9.434350458660908E-14 -2.493760838404728E-13 4.391442439368128E-10 -2.04169189300235E-10 2.759484104465206E-10 -2.675769750556819E-12
i -1.866200827158489E-16 4.427689426584094E-16 5.946735259475851E-13 2.877962407298918E-12 -2.675769750556819E-12 6.811454513792495E-14

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.72   n/a E2021B10  
diameter diameter 46.876 km 0.165 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 31.06 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D. (2005) Minor Planet Bull. 32, 54-58.]
[Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.047   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1010 Marlene (A923 VH)          Discovered 1923-Nov-12 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A923 VH = 1937 NB1 = 1950 CJ = 1950 EY = A903 UD = A908 VA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-20 21:14 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin