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JPL Small-Body Database Browser
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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 ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1052978778794058 4.451e-08  
a 2.432735004962747 1.141e-08 au
q 2.176573171497224 1.082e-07 au
i 3.174422986106147 5.0863e-06 deg
node 204.9749755046466 6.5647e-05 deg
peri 196.010153570778 6.8629e-05 deg
M 336.2880041067912 1.8204e-05 deg
tp 2459091.786434305188
(2020-Aug-30.28643431)
7.0057e-05 TDB
period 1385.927886369102
3.79
9.7505e-06
2.67e-08
d
yr
n .2597537747386983 1.8275e-09 deg/d
Q 2.68889683842827 1.2612e-08 au
  Orbit Determination Parameters
   # obs. used (total)      867  
   data-arc span      8984 days (24.60 yr)  
   first obs. used      1993-09-15  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56645  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 17:39:09  

Additional Information
 Earth MOID = 1.18475 au 
 Jupiter MOID = 2.66616 au 
 T_jup = 3.497 
[ 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. 2019-August); 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) ArXiv:1901.08719.]
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

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Alternate Designations
 1997 SC2 = 1993 RD19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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