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31110 Clapas (1997 PN4)
Classification: Main-belt Asteroid          SPK-ID: 2031110
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1647681847725499 2.8615e-08  
a 2.271517948079762 8.7925e-09 au
q 1.897244059096392 6.7232e-08 au
i 3.293213917475421 3.2094e-06 deg
node 241.2144621584685 6.4158e-05 deg
peri 1.992900889343427 6.5085e-05 deg
M 304.6843830846934 1.1567e-05 deg
tp 2459192.640070364085
(2020-Dec-09.14007036)
4.0501e-05 TDB
period 1250.468297894554
3.42
7.2604e-06
1.988e-08
d
yr
n .2878921445718707 1.6715e-09 deg/d
Q 2.645791837063131 1.0241e-08 au
  Orbit Determination Parameters
   # obs. used (total)      879  
   data-arc span      8925 days (24.44 yr)  
   first obs. used      1995-11-30  
   last obs. used      2020-05-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53008  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:02:50  

Additional Information
 Earth MOID = .884256 au 
 Jupiter MOID = 2.37058 au 
 T_jup = 3.592 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.21   n/a E2021B10  
diameter diameter 2.122 km 0.068 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.171   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

31110 Clapas           Discovered 1997 Aug. 13 at Pises.
Clapas is the former name for stone houses in the Montpellier area. Nowadays, it's the nickname of the area.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020328/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1997 PN4 = 2000 JE37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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