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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1794421710050993 3.3017e-08  
a 2.232023314851171 5.4386e-09 au
q 1.831504205500279 7.384e-08 au
i 7.602145427093141 3.3679e-06 deg
node 121.5875281667535 3.222e-05 deg
peri 144.5404155406451 3.4566e-05 deg
M 69.97701786993285 1.3915e-05 deg
tp 2458763.744843339011
(2019-Oct-07.24484334)
4.6896e-05 TDB
period 1217.997836895215
3.33
4.4517e-06
1.219e-08
d
yr
n .2955670273747548 1.0803e-09 deg/d
Q 2.632542424202063 6.4145e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2663  
   data-arc span      41729 days (114.25 yr)  
   first obs. used      1906-07-29  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39973  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:21:18  

Additional Information
 Earth MOID = .821448 au 
 Jupiter MOID = 2.47209 au 
 T_jup = 3.609 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456819.5 (2014-Jun-11.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1799962762498359 3.3069e-08  
q 1.830126895700878 7.3959e-08 au
tp 2456326.850145366189
(2013-Feb-03.35014537)
4.5719e-05 TDB
node 121.617788491861 3.2218e-05 deg
peri 144.4875592621347 3.4541e-05 deg
i 7.602439026042583 3.3682e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2663  
   data-arc span      41729 days (114.25 yr)  
   first obs. used      1906-07-29  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39973  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:21:18  

Additional Information
 Jupiter MOID = 2.47209 au 
 T_jup = 3.609 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.093569634584738E-15 -2.441328394837064E-15 -4.956462848743485E-13 5.363356837024648E-15 -1.293550251610551E-13 1.167111125518856E-15
q -2.441328394837064E-15 5.469862261444349E-15 1.108692573037343E-12 -1.17250215958862E-14 2.909609848630629E-13 -2.55123407049003E-15
tp -4.956462848743485E-13 1.108692573037343E-12 2.09024326638503E-9 -1.652611037871339E-11 5.901122090056779E-10 5.768887136376549E-13
node 5.363356837024648E-15 -1.17250215958862E-14 -1.652611037871339E-11 1.037974622924412E-9 -1.032861658494411E-9 6.809793578088498E-12
peri -1.293550251610551E-13 2.909609848630629E-13 5.901122090056779E-10 -1.032861658494411E-9 1.19310534053963E-9 -6.558269546106936E-12
i 1.167111125518856E-15 -2.55123407049003E-15 5.768887136376549E-13 6.809793578088498E-12 -6.558269546106936E-12 1.134472314220838E-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 12.2   n/a MPO492764  
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. 2019-August); 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 ]
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