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 ]  
2646 Abetti (1977 EC1)
Classification: Main-belt Asteroid          SPK-ID: 2002646
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09661110160606701 4.5717e-08  
a 3.015024301806629 1.5322e-08 au
q 2.723739482640028 1.3672e-07 au
i 9.661160537956386 4.9888e-06 deg
node 352.3323838486883 2.3438e-05 deg
peri 37.27265319296875 3.2091e-05 deg
M 243.4379144980258 2.2508e-05 deg
tp 2459619.640852384510
(2022-Feb-09.14085238)
0.00012149 TDB
period 1912.20589352486
5.24
1.4576e-05
3.991e-08
d
yr
n .1882642456123775 1.4351e-09 deg/d
Q 3.306309120973231 1.6802e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2252  
   data-arc span      28028 days (76.74 yr)  
   first obs. used      1943-11-03  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45836  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:55:02  

Additional Information
 Earth MOID = 1.7346 au 
 Jupiter MOID = 2.17245 au 
 T_jup = 3.220 
[ 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 11.4   n/a MPO473801  
diameter diameter 16.776 km 0.161 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.144   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2646 Abetti (1977 EC1)          Discovered 1977-Mar-13 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1977 EC1 = 1943 VE = 1948 UA = 1953 TZ1 = 1971 BZ = 1979 QP7 = 1979 SJ3 = 1982 FB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-25 06:58 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin