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 ]  
16801 Petrinpragensis (1997 SC2)
Classification: Main-belt Asteroid          SPK-ID: 2016801
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1054551189267066 4.1646e-08  
a 2.433167630921377 9.2026e-09 au
q 2.17657764903395 9.9045e-08 au
i 3.174176300232531 4.0394e-06 deg
node 204.9736182128991 6.0668e-05 deg
peri 196.0402642140311 6.3756e-05 deg
M 28.20815069512846 1.6699e-05 deg
tp 2459091.875300851906
(2020-Aug-30.37530085)
6.4508e-05 TDB
period 1386.297602985627
3.80
7.8648e-06
2.153e-08
d
yr
n .2596845000847429 1.4733e-09 deg/d
Q 2.689757612808803 1.0173e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1117  
   data-arc span      10011 days (27.41 yr)  
   first obs. used      1993-09-15  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53612  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:42:27  

Additional Information
 Earth MOID = 1.18373 au 
 Jupiter MOID = 2.6657 au 
 T_jup = 3.496 
[ 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 15.3   n/a MPO439209  
diameter diameter 4.544 km 0.198 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.84 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-H.; Lin, H.-W.; Ip, W.-H.; Chen, W.-P.; et al. (2019) Ap. J. Supp. Ser. 241, A6.]
geometric albedo albedo 0.078   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

16801 Petřínpragensis           Discovered 1997 Sept. 23 by P. Pravec at Ondřejov.
Petřín is a memorable hill in the center of Prague. There is located the Štefánik Observatory, founded in 1928, the oldest active public observatory in the Czech Republic. Petřín is also a symbol of lovers and a place of beautiful gardens and a renowned rosarium.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010509/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 1997 SC2 = 1993 RD19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-16 09:18 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin