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 ]  
1216 Askania (1932 BL)
Classification: Main-belt Asteroid          SPK-ID: 2001216
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 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1791571804999344 1.7765e-08  
a 2.232454243391882 5.1155e-09 au
q 1.832494035550678 3.9524e-08 au
i 7.602085286529103 5.8241e-07 deg
node 121.5880701472694 2.8618e-06 deg
peri 144.5652337741755 3.4424e-06 deg
M 186.9964194658254 2.4135e-06 deg
tp 2459981.997260089874
(2023-Feb-06.49726009)
9.5211e-06 TDB
period 1218.35058547079
3.34
4.1876e-06
1.147e-08
d
yr
n .2954814519672023 1.0156e-09 deg/d
Q 2.632414451233086 6.032e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3085  
   data-arc span      41897 days (114.71 yr)  
   first obs. used      1906-07-29  
   last obs. used      2021-04-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38617  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:07:03  

Additional Information
 Earth MOID = .822337 au 
 Jupiter MOID = 2.47009 au 
 T_jup = 3.608 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457210.5 (2015-Jul-07.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1791738921769194 1.7776e-08  
q 1.832995447838489 3.9562e-08 au
tp 2457545.239584756323
(2016-Jun-05.73958476)
6.6703e-06 TDB
node 121.6169179884906 2.8623e-06 deg
peri 144.4781034572201 3.4372e-06 deg
i 7.601036693708517 5.8233e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3085  
   data-arc span      41897 days (114.71 yr)  
   first obs. used      1906-07-29  
   last obs. used      2021-04-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38617  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:07:03  

Additional Information
 Jupiter MOID = 2.47009 au 
 T_jup = 3.608 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.159930622152927E-16 -6.992722212298819E-16 1.32015077859881E-14 -2.888832833632545E-14 4.351672265268489E-14 4.388724256731256E-16
q -6.992722212298819E-16 1.565136127808197E-15 -3.555618554830203E-14 6.398794968427547E-14 -9.933895042657818E-14 -8.905274931124656E-16
tp 1.32015077859881E-14 -3.555618554830203E-14 4.44933195001464E-11 4.343522243008559E-12 1.009936592183711E-11 2.367290581461454E-13
node -2.888832833632545E-14 6.398794968427547E-14 4.343522243008559E-12 8.192702852771767E-12 -7.241050107868846E-12 4.018249933564062E-13
peri 4.351672265268489E-14 -9.933895042657818E-14 1.009936592183711E-11 -7.241050107868846E-12 1.181431319135623E-11 -4.124806777522345E-13
i 4.388724256731256E-16 -8.905274931124656E-16 2.367290581461454E-13 4.018249933564062E-13 -4.124806777522345E-13 3.391088723399648E-13

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.21   n/a E2021B10  
diameter diameter 10.533 km 0.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 6.536 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Menke, J.; Cooney, W.; Gross, J.; Terrell, D. (2008) Minor Planet Bull. 35, 155-160.]
geometric albedo albedo 0.064   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.903   0.046 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=7.60 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

1216 Askania (1932 BL)          Discovered 1932-Jan-29 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1932 BL = 1952 DH = 1984 YY6 = A909 GF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-24 08:49 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin