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JPL Small-Body Database Browser
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9968 Serpe (1992 JS2)
Classification: Main-belt Asteroid          SPK-ID: 2009968
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05135515271117247 3.1693e-08  
a 2.56681891250397 1.0622e-08 au
q 2.434999535270403 8.259e-08 au
i 12.99158041433268 3.4088e-06 deg
node 213.0867159561005 1.5734e-05 deg
peri 78.89396993408799 4.0863e-05 deg
M 225.9713090225721 3.9444e-05 deg
tp 2459559.724960987873
(2021-Dec-11.22496099)
0.00016508 TDB
period 1502.073805895332
4.11
9.3237e-06
2.553e-08
d
yr
n .2396686491616283 1.4877e-09 deg/d
Q 2.698638289737537 1.1167e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2316  
   data-arc span      15424 days (42.23 yr)  
   first obs. used      1977-11-11  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43677  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:32:07  

Additional Information
 Earth MOID = 1.45803 au 
 Jupiter MOID = 2.37736 au 
 T_jup = 3.394 
[ 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 13.0   n/a MPO458926  
diameter diameter 12.355 km 0.453 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.088   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

9968 Serpe           Discovered 1992 May 4 by H. Debehogne at the European Southern Observatory.
Jean Nicolas François Jules Serpe (1914-2001) was the theoretical-physics professor of the discoverer at the University of Liege and was a member of the Académie royale de Belgique.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110517/MPCPages.arcLast Updated: 2011-06-24

[ 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
2062-Nov-13 00:52 00:01 Hebe 0.0451586432402014 0.0451548667892961 0.0451624223626426 6.68786559429873 6.68786557371476 2474506.536353734 1.46971868308002 589.970341424469 38.0079429802475 -71.7397824206775 168790.016356098 T 34 CATAB v2.0f-lin.ifort 2020-Feb-22 19:32:19 2020-Feb-22 19:32

Alternate Designations
 1992 JS2 = 1977 VT = 1985 SC2 = 1988 KR1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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