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 ]  
227092 (2005 MM21)
Classification: Main-belt Asteroid          SPK-ID: 2227092
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2260689802961347 5.6942e-08  
a 2.338267578245672 1.2644e-08 au
q 1.809657811172161 1.2827e-07 au
i 1.249474116645466 4.7256e-06 deg
node 272.1342941054633 0.00021578 deg
peri 108.3456761197941 0.00021612 deg
M 116.6330403160133 1.0716e-05 deg
tp 2458973.384597920115
(2020-May-03.88459792)
3.7932e-05 TDB
period 1305.989660700334
3.58
1.0593e-05
2.9e-08
d
yr
n .2756530245476452 2.2358e-09 deg/d
Q 2.866877345319184 1.5502e-08 au
  Orbit Determination Parameters
   # obs. used (total)      402  
   data-arc span      6645 days (18.19 yr)  
   first obs. used      2002-12-05  
   last obs. used      2021-02-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54079  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:38:24  

Additional Information
 Earth MOID = .812021 au 
 Jupiter MOID = 2.59959 au 
 T_jup = 3.531 
[ 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 17.07   n/a MPCxxxxx  

227092 (2005 MM21)          Discovered 2005-Jun-30 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ 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 2021-Jul-30 12:13 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin