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 ]  
120558 (1995 DN4)
Classification: Main-belt Asteroid          SPK-ID: 2120558
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1669561713890216 3.4576e-08  
a 3.110433988408492 2.1742e-08 au
q 2.591127838345525 1.1323e-07 au
i 11.2140746371782 6.6104e-06 deg
node 318.709028225594 2.1357e-05 deg
peri 101.1957976061152 3.0841e-05 deg
M 318.1125554330794 2.0879e-05 deg
tp 2459433.637038588888
(2021-Aug-07.13703859)
0.00011651 TDB
period 2003.687137273596
5.49
2.1008e-05
5.752e-08
d
yr
n .1796687682937615 1.8838e-09 deg/d
Q 3.629740138471457 2.5371e-08 au
  Orbit Determination Parameters
   # obs. used (total)      455  
   data-arc span      9421 days (25.79 yr)  
   first obs. used      1995-02-21  
   last obs. used      2020-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5732  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:25:21  

Additional Information
 Earth MOID = 1.63236 au 
 Jupiter MOID = 1.80929 au 
 T_jup = 3.168 
[ 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 15.35   n/a E2021B55  

120558 (1995 DN4)          Discovered 1995-Feb-21 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1995 DN4 = 2004 RM220 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-03 19:45 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin