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1452 Hunnia (1938 DZ1)
Classification: Main-belt Asteroid          SPK-ID: 2001452
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2021455781379247 3.7754e-08  
a 3.111421593394891 1.4337e-08 au
q 2.482461476567257 1.2056e-07 au
i 14.2070983446181 4.8492e-06 deg
node 21.34530125634082 1.6186e-05 deg
peri 94.28703950154203 2.1049e-05 deg
M 14.58958458697789 1.1248e-05 deg
tp 2458919.258647573148
(2020-Mar-10.75864757)
6.2644e-05 TDB
period 2004.641509791255
5.49
1.3856e-05
3.794e-08
d
yr
n .1795832313367028 1.2413e-09 deg/d
Q 3.740381710222524 1.7235e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2077  
   data-arc span      30063 days (82.31 yr)  
   first obs. used      1938-02-26  
   last obs. used      2020-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41289  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:31:41  

Additional Information
 Earth MOID = 1.5474 au 
 Jupiter MOID = 1.60967 au 
 T_jup = 3.141 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456819.5 (2014-Jun-11.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2029557126036373 3.7964e-08  
q 2.479511753324647 1.2158e-07 au
tp 2456918.671100408788
(2014-Sep-18.17110041)
6.3872e-05 TDB
node 21.40930850603554 1.6198e-05 deg
peri 94.79695298314752 2.0977e-05 deg
i 14.20380976374695 4.8479e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2077  
   data-arc span      30063 days (82.31 yr)  
   first obs. used      1938-02-26  
   last obs. used      2020-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41289  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:31:41  

Additional Information
 Jupiter MOID = 1.60967 au 
 T_jup = 3.141 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.441285838813151E-15 -4.596137050755912E-15 5.480278702303329E-13 2.170424241868835E-15 1.532920808827347E-13 -5.417644677958195E-15
q -4.596137050755912E-15 1.478209357587718E-14 -1.910935309061064E-12 -5.557522439633034E-15 -5.23690439783655E-13 1.780552075048632E-14
tp 5.480278702303329E-13 -1.910935309061064E-12 4.07963202952914E-9 -5.614470397643099E-12 8.64846036858993E-10 -1.003746505218305E-12
node 2.170424241868835E-15 -5.557522439633034E-15 -5.614470397643099E-12 2.623847496626721E-10 -2.550337652079389E-10 -5.500914412979859E-12
peri 1.532920808827347E-13 -5.23690439783655E-13 8.64846036858993E-10 -2.550337652079389E-10 4.40042967666819E-10 4.97431907576465E-12
i -5.417644677958195E-15 1.780552075048632E-14 -1.003746505218305E-12 -5.500914412979859E-12 4.97431907576465E-12 2.350209110526877E-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 12.2   n/a MPO502167  
diameter diameter 20.910 km 0.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 17.2 h n/a LCDB (Rev. 2019-August); 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:
[Sarneczky, K.; Szabo, G.; Kiss, L.L. (1999) Astron. Astrophys. Suppl. Ser. 137, 363-368.]
geometric albedo albedo 0.046   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

1452 Hunnia           Discovered 1938 Feb. 26 by G. Kulin at Budapest.
Named in honor of the Hungarian nation.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5182Last Updated: 2006-03-21

[ show close-approach data ]
Alternate Designations
 1938 DZ1 = 1953 YA = 1953 YM 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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