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1630 Milet (1952 DA)
Classification: Main-belt Asteroid          SPK-ID: 2001630
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1683306257796343 2.9359e-08  
a 3.028918211591551 1.0242e-08 au
q 2.519058513599014 8.8858e-08 au
i 4.536767547301523 4.1353e-06 deg
node 54.44817794873533 4.2293e-05 deg
peri 95.25851587783399 4.4337e-05 deg
M 44.39538833619667 1.2114e-05 deg
tp 2459159.053864899538
(2020-Nov-05.55386490)
6.4705e-05 TDB
period 1925.438921467251
5.27
9.7658e-06
2.674e-08
d
yr
n .1869703556868309 9.4831e-10 deg/d
Q 3.538777909584087 1.1966e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3263  
   data-arc span      35250 days (96.51 yr)  
   first obs. used      1924-12-23  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42301  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:36:00  

Additional Information
 Earth MOID = 1.536 au 
 Jupiter MOID = 1.48124 au 
 T_jup = 3.217 
[ show covariance matrix ]

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 11.62   n/a E2021B10  
diameter diameter 19.168 km 0.116 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 32.55 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:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pray, D. (2005) Minor Planet Bull. 32, 48-51.]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
geometric albedo albedo 0.102   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

1630 Milet (1952 DA)          Discovered 1952-Feb-28 by Boyer, L. at Algiers
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1952 DA = 1931 DQ = 1936 AB = 1942 GH = 1956 YL = A924 YD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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