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 ]  
4671 Drtikol (1988 AK1)
Classification: Main-belt Asteroid          SPK-ID: 2004671
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06176260467485285 3.9425e-08  
a 2.385467784756047 8.5366e-09 au
q 2.238135081001563 9.6288e-08 au
i 4.813483616639964 4.4215e-06 deg
node 349.2667176468094 3.8627e-05 deg
peri 332.6313204598034 5.0645e-05 deg
M 75.10328351736041 3.1315e-05 deg
tp 2458719.752960876906
(2019-Aug-24.25296088)
0.00011756 TDB
period 1345.732561226188
3.68
7.2237e-06
1.978e-08
d
yr
n .2675122906084547 1.436e-09 deg/d
Q 2.532800488510532 9.0639e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2137  
   data-arc span      23685 days (64.85 yr)  
   first obs. used      1955-03-23  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47755  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:18:47  

Additional Information
 Earth MOID = 1.22702 au 
 Jupiter MOID = 2.64685 au 
 T_jup = 3.528 
[ 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 13.2   n/a MPO279563  
diameter diameter 6.177 km 0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.266   0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4671 Drtikol           Discovered 1988 Jan. 10 by A. Mrkos at Klet.
Named in memory of František Drtikol (1883-1961), outstanding Czech photographer well-known for his black-and-white portraits in the Art Nouveau style and fine-art nude studies using geometric patterns of shadows and light. Name suggested by M. Tichy.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990402/MPCPages.arcLast Updated: 2010-06-11

[ show close-approach data ]
Alternate Designations
 1988 AK1 = 1974 HM2 = 1986 RR7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-07 04:04 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin