Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 
[ 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2060-Jun-30 07:50 < 00:01 Vesta 0.0442428851651104 0.0442408515492175 0.0442449191854165 3.7450803837232 3.74507966561473 2473640.826261424 0.822287395895726 237.97785054065 22.8200112128524 65.4746192877579 262853.878194846 T 36 CATAB v2.0f-lin.ifort 2020-Aug-24 22:53:45 2020-Aug-24 22:53

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-01 08:45 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin