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 ]  
297300 (1998 SC15)
Classification: Apollo [NEO, PHA]          SPK-ID: 2297300
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 81 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4146631308611499 3.4704e-08  
a 1.272969402602388 2.9209e-09 au
q .745115924628834 4.2779e-08 au
i 16.08043765133667 1.0707e-05 deg
node 198.7171260750109 1.3125e-05 deg
peri 277.4674218109582 1.4706e-05 deg
M 319.6535798499332 6.484e-06 deg
tp 2459059.293305821977
(2020-Jul-28.79330582)
9.5966e-06 TDB
period 524.5964825921893
1.44
1.8056e-06
4.943e-09
d
yr
n .6862417342585514 2.362e-09 deg/d
Q 1.800822880575942 4.1321e-09 au
  Orbit Determination Parameters
   # obs. used (total)      366  
   # delay obs. used      1  
   # Doppler obs. used      2  
   data-arc span      7590 days (20.78 yr)  
   first obs. used      1998-09-23  
   last obs. used      2019-07-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46787  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:45:27  

Additional Information
 Earth MOID = .000842962 au 
 Jupiter MOID = 3.40645 au 
 T_jup = 4.953 
[ 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 19.3   n/a MPO476308  
diameter diameter 0.320 km 0.03 Pers. comm. Mike Nolan (Arecibo). Arecibo resolved at 0.2 us with a delay depth of 0.5-0.6 us.
rotation period rot_per 15 h n/a Pers. comm. Mike Nolan (Arecibo). Probable contact binary (bilobate) as per Arecibo radar

297300 (1998 SC15)          Discovered 1998-Sep-23 by LINEAR at Socorro
Reference: 20111012/Numbers.arcLast Updated: 2011-10-13

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-01 02:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin