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

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
1016 Anitra (A924 CG)
Classification: Main-belt Asteroid          SPK-ID: 2001016
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1281728467510289 1.1954e-08  
a 2.219388150870919 4.3827e-09 au
q 1.934922853528292 2.6531e-08 au
i 6.034742867182786 1.2138e-07 deg
node 8.831346621387119 9.4108e-06 deg
peri 53.090965954562 1.1062e-05 deg
M 232.500703662097 4.4008e-06 deg
tp 2459824.214140549559
(2022-Sep-01.71414055)
1.5184e-05 TDB
period 1207.670120702203
3.31
3.5773e-06
9.794e-09
d
yr
n .298094648388483 8.8299e-10 deg/d
Q 2.503853448213547 4.9445e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3255  
   data-arc span      35617 days (97.51 yr)  
   first obs. used      1924-02-01  
   last obs. used      2021-08-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .37611  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 07:15:27  

Additional Information
 Earth MOID = .953678 au 
 Jupiter MOID = 2.79094 au 
 T_jup = 3.633 
[ 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 11.95   n/a E2021B10  
diameter diameter 9.539 km 0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.92951 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Menke, J. (2005) Minor Planet Bull. 32, 64-66.]
[Pray, D.P.; Galad, A.; Gajdos, S.; Vilagi, J.; et al. (2006) Minor Planet Bull. 33, 92-95.]
[Menke, J. (2011) http://menkescientific.com/lightcrv.html]
[Kryszczynska, A.; Colas, F.; Polinska, M.; Hirsch, R.; et al. (2012) Astron. Astrophys. 546, A72.]
[Alkema, M.S. (2013) Minor Planet Bull. 40, 133-137.]
[Pilcher, F.; Benishek, V.; Jacobsen, J.; Kristensen, L.H.; et al. (2016) Minor Planet Bull. 43, 274-277.]
[Schmidt, R.E. (2016) Minor Planet Bull. 43, 129-131.]
[Klinglesmith III, D.K. (2017) Minor Planet Bull. 44, 345-348.]
[Lang, K. (2020) Minor Planet Bull. 47, 322-323.]
geometric albedo albedo 0.308   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B S   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)

1016 Anitra (A924 CG)          Discovered 1924-Jan-31 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A924 CG = 1929 TE1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-20 12:42 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin