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1601 Patry (1942 KA)
Classification: Main-belt Asteroid          SPK-ID: 2001601
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 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1291738639874793 1.0678e-08  
a 2.234376020944991 4.5495e-09 au
q 1.945753036718557 2.3751e-08 au
i 4.938973783092806 3.7118e-07 deg
node 74.66481735567827 4.4241e-06 deg
peri 196.5882719709685 7.3989e-06 deg
M 222.4055546018739 6.2219e-06 deg
tp 2459862.763287060368
(2022-Oct-10.26328706)
2.1491e-05 TDB
period 1219.924124524422
3.34
3.7259e-06
1.02e-08
d
yr
n .295100320391109 9.013e-10 deg/d
Q 2.522999005171424 5.1372e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3078  
   data-arc span      28861 days (79.02 yr)  
   first obs. used      1942-05-18  
   last obs. used      2021-05-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42509  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:33:54  

Additional Information
 Earth MOID = .930106 au 
 Jupiter MOID = 2.55445 au 
 T_jup = 3.624 
[ 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 12.43   n/a MPO614063  
diameter diameter 7.548 km 0.179 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 5.92 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Kryszczynska, A.; Colas, F.; Polinska, M.; Hirsch, R.; et al. (2012) Astron. Astrophys. 546, A72.]
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.366   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.952   0.032 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=12.27 deg.
U-B UB 0.493   0.052 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=12.27 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices
SMASSII spectral type spec_B Sl   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)

1601 Patry (1942 KA)          Discovered 1942-May-18 by Boyer, L. at Algiers
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1942 KA = 1942 KC = 1945 FA = 1949 OG = 1955 DL = A922 KB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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