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JPL Small-Body Database Browser
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56455 (2000 GW87)
Classification: Main-belt Asteroid          SPK-ID: 2056455
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1813709589830246 3.9795e-08  
a 2.21517476544587 7.9877e-09 au
q 1.813406393921956 8.689e-08 au
i 6.774015478509884 4.1306e-06 deg
node 104.9891094921668 3.4655e-05 deg
peri 182.9813007302617 3.6666e-05 deg
M 331.6785575851069 1.3639e-05 deg
tp 2459095.237798291409
(2020-Sep-02.73779829)
4.5804e-05 TDB
period 1204.232711218569
3.30
6.5135e-06
1.783e-08
d
yr
n .2989455415438052 1.617e-09 deg/d
Q 2.616943136969784 9.4365e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1292  
   data-arc span      8446 days (23.12 yr)  
   first obs. used      1995-12-20  
   last obs. used      2019-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55009  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:25:09  

Additional Information
 Earth MOID = .79707 au 
 Jupiter MOID = 2.54648 au 
 T_jup = 3.623 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456556.5 (2013-Sep-21.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1818282130036359 3.9895e-08  
q 1.812263158611467 8.7107e-08 au
tp 2456686.581737019300
(2014-Jan-29.08173702)
4.2564e-05 TDB
node 105.0373453055165 3.4636e-05 deg
peri 182.9129134322436 3.6632e-05 deg
i 6.77617310738135 4.1323e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1292  
   data-arc span      8446 days (23.12 yr)  
   first obs. used      1995-12-20  
   last obs. used      2019-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55009  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:25:09  

Additional Information
 Jupiter MOID = 2.54648 au 
 T_jup = 3.623 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.591638756052634E-15 -3.465715945506727E-15 6.92345204787301E-13 -4.800617953788235E-15 1.763397274409047E-13 -2.217643247454825E-16
q -3.465715945506727E-15 7.587545927006259E-15 -1.512095689640863E-12 1.083058621806558E-14 -3.875823191736795E-13 6.068613333555551E-16
tp 6.92345204787301E-13 -1.512095689640863E-12 1.811694447106285E-9 -1.156901816909836E-11 5.227564168117578E-10 -1.838021853691599E-12
node -4.800617953788235E-15 1.083058621806558E-14 -1.156901816909836E-11 1.199660033866835E-9 -1.19408686907208E-9 3.557795806761826E-11
peri 1.763397274409047E-13 -3.875823191736795E-13 5.227564168117578E-10 -1.19408686907208E-9 1.341889851550147E-9 -3.586370483306099E-11
i -2.217643247454825E-16 6.068613333555551E-16 -1.838021853691599E-12 3.557795806761826E-11 -3.586370483306099E-11 1.707578099931651E-11

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 MPO365906  
diameter diameter 2.203 km 0.450 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.252   0.140 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

56455 (2000 GW87)          Discovered 2000-Apr-04 by LINEAR at Socorro
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 GW87 = 1995 YK23 = 1998 XL86 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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