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27956 (1997 RC)
Classification: Main-belt Asteroid          SPK-ID: 2027956
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02547986047326414 3.8979e-08  
a 2.858816174510564 1.6485e-08 au
q 2.785973937265324 1.0765e-07 au
i 3.006184150498309 4.7221e-06 deg
node 63.13733323187711 8.6893e-05 deg
peri 48.29577110966076 0.00013611 deg
M 186.5586985456606 0.00010403 deg
tp 2459851.104734439221
(2022-Sep-28.60473444)
0.00051002 TDB
period 1765.540859244158
4.83
1.5271e-05
4.181e-08
d
yr
n .2039035223201341 1.7636e-09 deg/d
Q 2.931658411755804 1.6905e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1414  
   data-arc span      7992 days (21.88 yr)  
   first obs. used      1997-09-01  
   last obs. used      2019-07-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54487  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 01:13:27  

Additional Information
 Earth MOID = 1.80378 au 
 Jupiter MOID = 2.07803 au 
 T_jup = 3.300 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456788.5 (2014-May-11.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02689839367461749 3.937e-08  
q 2.778226795444596 1.0921e-07 au
tp 2456295.361296705700
(2013-Jan-02.86129671)
0.00048033 TDB
node 63.19076061676699 8.6669e-05 deg
peri 42.52544368995553 0.00013152 deg
i 3.011507919489969 4.731e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1414  
   data-arc span      7992 days (21.88 yr)  
   first obs. used      1997-09-01  
   last obs. used      2019-07-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54487  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 01:13:27  

Additional Information
 Jupiter MOID = 2.07803 au 
 T_jup = 3.300 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.549974817687133E-15 -4.260034085150479E-15 -1.541576604444425E-12 6.926918353126963E-15 -3.548444477854961E-13 -4.281478160665913E-16
q -4.260034085150479E-15 1.192754699680289E-14 4.507323977466264E-12 -2.118185992839234E-14 1.044234092286186E-12 1.294246989915555E-15
tp -1.541576604444425E-12 4.507323977466264E-12 2.307187293658663E-7 -2.527287494542471E-11 4.753704951940829E-8 -1.535901352624766E-12
node 6.926918353126963E-15 -2.118185992839234E-14 -2.527287494542471E-11 7.511562920290995E-9 -7.506467531453169E-9 -8.971352592880431E-11
peri -3.548444477854961E-13 1.044234092286186E-12 4.753704951940829E-8 -7.506467531453169E-9 1.72973426332577E-8 8.929386393267929E-11
i -4.281478160665913E-16 1.294246989915555E-15 -1.535901352624766E-12 -8.971352592880431E-11 8.929386393267929E-11 2.238237480644689E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9   n/a MPO344520  
diameter diameter 4.062 km 0.615 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.354   0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27956 (1997 RC)          Discovered 1997-Sep-01 by Moravec, Z. at Klet
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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