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49637 (1999 HO8)
Classification: Main-belt Asteroid          SPK-ID: 2049637
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1374080331970263 6.0307e-08  
a 2.675904828095277 1.3444e-08 au
q 2.308214008644279 1.6455e-07 au
i 13.3564289086109 5.873e-06 deg
node 345.3720942980499 1.6829e-05 deg
peri 159.6993869987488 2.4384e-05 deg
M 339.5351740320489 1.6042e-05 deg
tp 2459091.388717773916
(2020-Aug-29.88871777)
7.1384e-05 TDB
period 1598.837852315521
4.38
1.2049e-05
3.299e-08
d
yr
n .2251635458083689 1.6968e-09 deg/d
Q 3.043595647546276 1.5291e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1387  
   data-arc span      15923 days (43.59 yr)  
   first obs. used      1977-03-26  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51175  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:31:38  

Additional Information
 Earth MOID = 1.32357 au 
 Jupiter MOID = 1.9631 au 
 T_jup = 3.327 
[ 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 13.8   n/a MPO365831  
diameter diameter 6.210 km 0.536 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.166   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

49637 (1999 HO8)          Discovered 1999-Apr-16 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 HO8 = 1977 FF2 = 2001 QM81 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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