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 ]  
2623 Zech (A919 SA)
Classification: Main-belt Asteroid          SPK-ID: 2002623
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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2352084172591355 3.3351e-08  
a 2.25461040649328 6.4478e-09 au
q 1.724307061246019 7.6187e-08 au
i 4.054804335724623 3.7801e-06 deg
node 349.0955931341128 4.6223e-05 deg
peri 22.74732581671956 4.667e-05 deg
M 255.5260951688119 8.0093e-06 deg
tp 2459359.348400011713
(2021-May-24.84840001)
2.8295e-05 TDB
period 1236.532933395744
3.39
5.3044e-06
1.452e-08
d
yr
n .2911366048386391 1.2489e-09 deg/d
Q 2.78491375174054 7.9643e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2673  
   data-arc span      36844 days (100.87 yr)  
   first obs. used      1919-09-22  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42749  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:54:45  

Additional Information
 Earth MOID = .725079 au 
 Jupiter MOID = 2.68471 au 
 T_jup = 3.584 
[ 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 13.3   n/a MPO365277  
rotation period rot_per 2.7401 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pray, D.; Pravec, P.; Chorny, V.; Krugly, Yu.N.; et al. (2014) CBET 4012.]
[Ditteon, R.; Black, S.; Masner, Z.; Osborne, J.; Trent, L. (2018) Minor Planet Bull. 45, 338-340.]

2623 Zech (A919 SA)          Discovered 1919-Sep-22 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A919 SA = 1963 RE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-30 23:25 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin