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27726 (1990 QM5)
Classification: Main-belt Asteroid          SPK-ID: 2027726
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2463797049727312 3.9602e-08  
a 3.057929775160878 1.3046e-08 au
q 2.304517939329411 1.2194e-07 au
i 2.936195636164336 4.0798e-06 deg
node 127.5890228179852 8.2993e-05 deg
peri 227.3600066813956 8.3271e-05 deg
M 180.585240596844 7.8203e-06 deg
tp 2459973.908994026233
(2023-Jan-29.40899403)
4.5973e-05 TDB
period 1953.168396040441
5.35
1.2499e-05
3.422e-08
d
yr
n .1843159047268068 1.1795e-09 deg/d
Q 3.811341610992346 1.626e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1436  
   data-arc span      10862 days (29.74 yr)  
   first obs. used      1990-08-22  
   last obs. used      2020-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51815  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:21:36  

Additional Information
 Earth MOID = 1.30106 au 
 Jupiter MOID = 1.63509 au 
 T_jup = 3.186 
[ 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 14.0   n/a MPO435956  
diameter diameter 9.615 km 0.233 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27726 (1990 QM5)          Discovered 1990-Aug-29 by Holt, H. E. at Palomar
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 QM5 = 1998 EN8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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