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27965 (1997 SH25)
Classification: Main-belt Asteroid          SPK-ID: 2027965
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .158427596783883 3.618e-08  
a 2.415680600503538 8.5615e-09 au
q 2.032970128368315 8.917e-08 au
i 2.519828401694824 3.7004e-06 deg
node 85.38043638303202 9.6328e-05 deg
peri 344.731732505046 9.7237e-05 deg
M 221.9046185735186 1.4372e-05 deg
tp 2459126.558869716968
(2020-Oct-04.05886972)
5.6165e-05 TDB
period 1371.379630092338
3.75
7.2905e-06
1.996e-08
d
yr
n .2625093680119489 1.3955e-09 deg/d
Q 2.798391072638762 9.9178e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1366  
   data-arc span      14490 days (39.67 yr)  
   first obs. used      1980-02-18  
   last obs. used      2019-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52756  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 05:03:17  

Additional Information
 Earth MOID = 1.04727 au 
 Jupiter MOID = 2.47403 au 
 T_jup = 3.498 
[ 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 14.7   n/a MPO435958  
diameter diameter 2.614 km 0.706 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.629 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.341   0.230 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27965 (1997 SH25)          Discovered 1997-Sep-29 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 SH25 = 1980 DE = 1980 DZ3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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