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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1450708292162866 3.0911e-08  
a 2.263371052378309 7.1649e-09 au
q 1.935021936985648 7.188e-08 au
i 4.860474978257033 3.7604e-06 deg
node 296.3659588307517 3.8237e-05 deg
peri 333.9502216681108 4.0437e-05 deg
M 288.5800440425294 1.3303e-05 deg
tp 2459247.245442523531
(2021-Feb-01.74544252)
4.6137e-05 TDB
period 1243.74704685294
3.41
5.9058e-06
1.617e-08
d
yr
n .2894479234430426 1.3744e-09 deg/d
Q 2.59172016777097 8.2043e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2671  
   data-arc span      24425 days (66.87 yr)  
   first obs. used      1953-09-16  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41306  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:53:25  

Additional Information
 Earth MOID = .920191 au 
 Jupiter MOID = 2.50819 au 
 T_jup = 3.599 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456922.5 (2014-Sep-22.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1454893329263336 3.0894e-08  
q 1.934284609271824 7.1891e-08 au
tp 2456759.375533130194
(2014-Apr-11.87553313)
4.5629e-05 TDB
node 296.4308721556291 3.8218e-05 deg
peri 333.9032316950207 4.0411e-05 deg
i 4.86179647425691 3.7615e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2671  
   data-arc span      24425 days (66.87 yr)  
   first obs. used      1953-09-16  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41306  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:53:25  

Additional Information
 Jupiter MOID = 2.50819 au 
 T_jup = 3.599 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.544190048101242E-16 -2.213541448912749E-15 4.148495391637756E-13 -3.460263791482099E-16 1.167099728075828E-13 2.085375091052994E-16
q -2.213541448912749E-15 5.168295418444936E-15 -9.664370587019043E-13 8.445711383116421E-16 -2.712996423099768E-13 -3.60029324185845E-16
tp 4.148495391637756E-13 -9.664370587019043E-13 2.081991974151195E-9 -4.685261059243973E-12 6.083818053247457E-10 1.835772384630024E-13
node -3.460263791482099E-16 8.445711383116421E-16 -4.685261059243973E-12 1.46058366489914E-9 -1.456130170099968E-9 2.847278514783022E-11
peri 1.167099728075828E-13 -2.712996423099768E-13 6.083818053247457E-10 -1.456130170099968E-9 1.633022589206453E-9 -2.831969552031968E-11
i 2.085375091052994E-16 -3.60029324185845E-16 1.835772384630024E-13 2.847278514783022E-11 -2.831969552031968E-11 1.414922828158811E-11

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. 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:
[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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