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 ]  
118174 (1991 RO24)
Classification: Mars-crossing Asteroid          SPK-ID: 2118174
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3083252506734243 4.6068e-08  
a 2.318339105323302 7.6431e-09 au
q 1.603536619528493 1.0865e-07 au
i 9.582927893190137 4.7774e-06 deg
node 150.3942395920478 2.9653e-05 deg
peri 179.6229914109331 3.0712e-05 deg
M 113.4506369024108 1.1003e-05 deg
tp 2458794.179900904672
(2019-Nov-06.67990090)
3.8196e-05 TDB
period 1289.329347706905
3.53
6.376e-06
1.746e-08
d
yr
n .2792149272335005 1.3808e-09 deg/d
Q 3.033141591118112 9.9997e-09 au
  Orbit Determination Parameters
   # obs. used (total)      431  
   data-arc span      10788 days (29.54 yr)  
   first obs. used      1991-08-08  
   last obs. used      2021-02-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56258  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:56:02  

Additional Information
 Earth MOID = .590759 au 
 Jupiter MOID = 2.34453 au 
 T_jup = 3.497 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO493674  

118174 (1991 RO24)          Discovered 1991-Sep-12 by Holt, H. E. at Palomar
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

Alternate Designations
 1991 RO24 = 1998 PK 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-15 06:39 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin