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55736 (1987 QC1)
Classification: Main-belt Asteroid          SPK-ID: 2055736
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2653806550629542 5.5689e-08  
a 2.683229248578091 1.4322e-08 au
q 1.971152112906359 1.4748e-07 au
i 14.40263660491919 5.3232e-06 deg
node 332.8069406317452 1.4481e-05 deg
peri 8.094483194505445 1.5775e-05 deg
M 156.4563031598991 8.231e-06 deg
tp 2458302.788856530667
(2018-Jul-03.28885653)
3.522e-05 TDB
period 1605.406791391822
4.40
1.2853e-05
3.519e-08
d
yr
n .2242422306485291 1.7953e-09 deg/d
Q 3.395306384249824 1.8122e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1501  
   data-arc span      11980 days (32.80 yr)  
   first obs. used      1987-08-21  
   last obs. used      2020-06-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49259  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:02:27  

Additional Information
 Earth MOID = .963312 au 
 Jupiter MOID = 2.01423 au 
 T_jup = 3.280 
[ 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 13.9   n/a MPO493264  
diameter diameter 12.002 km 0.319 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.041   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

55736 (1987 QC1)          Discovered 1987-Aug-21 by Vavrova, Z. at Klet
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1987 QC1 = 2001 UF169 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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