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79577 (1998 QX99)
Classification: Main-belt Asteroid          SPK-ID: 2079577
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2385412066254193 4.8287e-08  
a 2.598249246480806 1.0944e-08 au
q 1.978459736111688 1.2853e-07 au
i 3.301802426226163 5.4665e-06 deg
node 37.43120710757809 5.9364e-05 deg
peri 352.657334622432 6.0168e-05 deg
M 42.66666057942889 7.4047e-06 deg
tp 2458819.196664479788
(2019-Dec-01.69666448)
3.1467e-05 TDB
period 1529.747111700253
4.19
9.6653e-06
2.646e-08
d
yr
n .2353330150104839 1.4869e-09 deg/d
Q 3.218038756849924 1.3555e-08 au
  Orbit Determination Parameters
   # obs. used (total)      762  
   data-arc span      16888 days (46.24 yr)  
   first obs. used      1973-11-02  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51606  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 18:43:37  

Additional Information
 Earth MOID = .983957 au 
 Jupiter MOID = 2.22841 au 
 T_jup = 3.373 
[ 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 15.9   n/a MPO502635  
diameter diameter 3.537 km 0.818 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.062   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

79577 (1998 QX99)          Discovered 1998-Aug-26 by Elst, E. W. at La Silla
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 1998 QX99 = 1973 VN 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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