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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1745786523054194 3.5397e-08  
a 3.21139866190105 1.7282e-08 au
q 2.650757011490938 1.1056e-07 au
i 2.73107055925116 3.8872e-06 deg
node 95.82923539966042 9.4338e-05 deg
peri 218.695630247954 9.5128e-05 deg
M 30.2243365997059 1.3214e-05 deg
tp 2458424.020592740558
(2018-Nov-01.52059274)
7.6709e-05 TDB
period 2102.034114258019
5.76
1.6968e-05
4.646e-08
d
yr
n .1712626819698755 1.3824e-09 deg/d
Q 3.772040312311163 2.0299e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2052  
   data-arc span      15119 days (41.39 yr)  
   first obs. used      1978-07-07  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46983  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 21:41:34  

Additional Information
 Earth MOID = 1.63678 au 
 Jupiter MOID = 1.51949 au 
 T_jup = 3.166 
[ 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 12.7   n/a MPO452271  
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. 2019-January); 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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