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2554 Skiff (1980 OB)
Classification: Main-belt Asteroid          SPK-ID: 2002554
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1450708299310989 3.0959e-08  
a 2.263371052432303 7.1692e-09 au
q 1.935021935413924 7.1976e-08 au
i 4.860474903862301 3.7694e-06 deg
node 296.3659587678431 3.8237e-05 deg
peri 333.9502218082902 4.0438e-05 deg
M 288.5800438911475 1.331e-05 deg
tp 2459247.245443055362
(2021-Feb-01.74544306)
4.6163e-05 TDB
period 1243.747046897445
3.41
5.9093e-06
1.618e-08
d
yr
n .2894479234326852 1.3752e-09 deg/d
Q 2.591720169450682 8.2092e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2642  
   data-arc span      24380 days (66.75 yr)  
   first obs. used      1953-09-16  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41364  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:46:52  

Additional Information
 Earth MOID = .920191 au 
 Jupiter MOID = 2.50819 au 
 T_jup = 3.599 
[ 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 12.8   n/a MPO502177  
diameter diameter 6.005 km 0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 273. h n/a LCDB (Rev. 2019-August); 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:
[Skiff, B.A. (2017) Posting on CALL web site: http://www.minorplanet.info/call.html]
geometric albedo albedo 0.334   0.139 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

2554 Skiff (1980 OB)          Discovered 1980-Jul-17 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1980 OB = 1931 AB = 1970 RE = 1976 GK8 = 1976 HV 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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