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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
4857 Altgamia (1984 FM)
Classification: Main-belt Asteroid          SPK-ID: 2004857
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2281865066914519 6.6271e-08  
a 2.357244632602951 1.079e-08 au
q 1.819353214472109 1.5542e-07 au
i 24.47251793707111 8.1847e-06 deg
node 31.70689573679542 1.1929e-05 deg
peri 139.0862806395479 1.8053e-05 deg
M 265.0595937835502 1.5293e-05 deg
tp 2458949.121361769290
(2020-Apr-09.62136177)
5.7686e-05 TDB
period 1321.920720992229
3.62
9.076e-06
2.485e-08
d
yr
n .2723310061512504 1.8698e-09 deg/d
Q 2.895136050733794 1.3252e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1339  
   data-arc span      12998 days (35.59 yr)  
   first obs. used      1984-03-29  
   last obs. used      2019-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42904  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:40:07  

Additional Information
 Earth MOID = .863805 au 
 Jupiter MOID = 2.16286 au 
 T_jup = 3.400 
[ 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 13.1   n/a MPO452234  
diameter diameter 6.192 km 0.069 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.349   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4857 Altgamia (1984 FM)          Discovered 1984-Mar-29 by Shoemaker, C. S. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1984 FM = 1986 UB1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin