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18492 (1996 GS2)
Classification: Main-belt Asteroid          SPK-ID: 2018492
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1476829241779577 2.8228e-08  
a 2.245230615936249 5.817e-09 au
q 1.913648393120907 6.4261e-08 au
i 7.384283494680465 2.8815e-06 deg
node 159.709410759616 2.5061e-05 deg
peri 95.20257538025434 2.7527e-05 deg
M 42.11638080971981 1.0077e-05 deg
tp 2459056.739887688422
(2020-Jul-26.23988769)
3.4472e-05 TDB
period 1228.824496245036
3.36
4.7755e-06
1.307e-08
d
yr
n .2929629097564909 1.1385e-09 deg/d
Q 2.576812838751592 6.6761e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2108  
   data-arc span      24081 days (65.93 yr)  
   first obs. used      1954-11-04  
   last obs. used      2020-10-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49075  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:14:40  

Additional Information
 Earth MOID = .914712 au 
 Jupiter MOID = 2.4899 au 
 T_jup = 3.606 
[ 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 14.58   n/a E2021B10  
diameter diameter 2.590 km 0.174 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.6577 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:
[Pravec, P.; Wolf, M.; Sarounova, L. (2020) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.458   0.166 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18492 (1996 GS2)          Discovered 1996-Apr-08 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1996 GS2 = 2000 LB4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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