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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2352084149474462 3.3136e-08  
a 2.254610406236396 6.4366e-09 au
q 1.724307066261515 7.574e-08 au
i 4.054804172673943 3.7425e-06 deg
node 349.0955929527747 4.6193e-05 deg
peri 22.74732621837527 4.6639e-05 deg
M 255.5260952257036 8.0083e-06 deg
tp 2459359.348399754972
(2021-May-24.84839976)
2.8291e-05 TDB
period 1236.532933184414
3.39
5.2952e-06
1.45e-08
d
yr
n .291136604888396 1.2467e-09 deg/d
Q 2.784913746211277 7.9505e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2744  
   data-arc span      36908 days (101.05 yr)  
   first obs. used      1919-09-22  
   last obs. used      2020-10-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42526  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:07:35  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2002-Jun-08 03:58 < 00:01 Juno 0.036009565915352 0.0360088638369493 0.0360102679964829 5.63400106215552 5.63400100218868 2452433.665126891 0.300370522682486 44.0444842022596 28.4044198485112 52.6192435238341 167915.064804562 T 38 CATAB v2.0f-lin.ifort 2020-Nov-13 04:07:42 2020-Nov-13 04:07
2192-Dec-11 14:30 00:05 Thisb 0.0350138304213624 0.0350103263024649 0.0350173355158231 2.50682349975918 2.50682342207879 2522017.103854721 5.43249562576807 340.719181270342 18.2114482821962 -59.3274490703457 247154.189322176 T 38 CATAB v2.0f-lin.ifort 2020-Nov-13 04:07:42 2020-Nov-13 04:07

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-Nov-29 16:59 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin