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 ]  
120961 (1998 VJ4)
Classification: Main-belt Asteroid          SPK-ID: 2120961
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06045067635563779 3.6966e-08  
a 3.072899601681984 2.6365e-08 au
q 2.887140742387338 1.1005e-07 au
i 11.09424713139424 7.1157e-06 deg
node 45.9767040824789 2.4676e-05 deg
peri 233.1707601723979 7.3588e-05 deg
M 161.6564697564537 7.0512e-05 deg
tp 2458316.989788714922
(2018-Jul-17.48978871)
0.00038582 TDB
period 1967.528281062998
5.39
2.5322e-05
6.933e-08
d
yr
n .1829706863504409 2.3548e-09 deg/d
Q 3.25865846097663 2.7959e-08 au
  Orbit Determination Parameters
   # obs. used (total)      540  
   data-arc span      8156 days (22.33 yr)  
   first obs. used      1998-11-10  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58218  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:08:57  

Additional Information
 Earth MOID = 1.88541 au 
 Jupiter MOID = 1.81523 au 
 T_jup = 3.199 
[ 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 14.8   n/a MPO502803  
rotation period rot_per 5.82 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:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

120961 (1998 VJ4)          Discovered 1998-Nov-11 by ODAS at Caussols
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1998 VJ4 = 2001 FO124 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-22 15:37 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin