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7270 Punkin (1978 NY7)
Classification: Outer Main-belt Asteroid          SPK-ID: 2007270
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1746830860641045 1.9459e-08  
a 3.213578791483778 1.5704e-08 au
q 2.652220930877236 6.1703e-08 au
i 2.730892524116419 1.1704e-06 deg
node 95.82978281695688 2.7766e-05 deg
peri 218.9075905745988 2.8185e-05 deg
M 132.6981398155906 1.012e-05 deg
tp 2458424.888589183571
(2018-Nov-02.38858918)
5.5922e-05 TDB
period 2104.174996589583
5.76
1.5423e-05
4.223e-08
d
yr
n .1710884316102429 1.2541e-09 deg/d
Q 3.77493665209032 1.8447e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2450  
   data-arc span      15581 days (42.66 yr)  
   first obs. used      1978-07-07  
   last obs. used      2021-03-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45374  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 19:40:05  

Additional Information
 Earth MOID = 1.63714 au 
 Jupiter MOID = 1.51992 au 
 T_jup = 3.165 
[ 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 12.73   n/a E2021B10  
diameter diameter 14.725 km 0.157 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.51 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:
[Polishook, D.; Ofek, E.O.; Waszczak, A.; Kulkarni, S.R.; et al. (2012). Mon. Not. Royal Ast. Soc. 421, 2094-2108.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.081   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7270 Punkin (1978 NY7)          Discovered 1978-Jul-07 by Bus, S. J. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1978 NY7 = 1979 WQ7 = 1982 DB4 = 1982 DB6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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