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74139 (1998 QC77)
Classification: Main-belt Asteroid          SPK-ID: 2074139
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09289988841492119 4.2488e-08  
a 2.518288100286171 1.0572e-08 au
q 2.284339416772962 1.0733e-07 au
i 17.4559911273594 6.6364e-06 deg
node 197.4854383612076 1.0183e-05 deg
peri 54.68975635011297 3.8011e-05 deg
M 147.980588091528 3.499e-05 deg
tp 2458000.489576659408
(2017-Sep-03.98957666)
0.00014114 TDB
period 1459.676266923684
4.00
9.1919e-06
2.517e-08
d
yr
n .2466300289712266 1.5531e-09 deg/d
Q 2.75223678379938 1.1554e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1178  
   data-arc span      7417 days (20.31 yr)  
   first obs. used      1998-08-19  
   last obs. used      2018-12-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54385  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:28:20  

Additional Information
 Earth MOID = 1.31204 au 
 Jupiter MOID = 2.28815 au 
 T_jup = 3.388 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO453154  
diameter diameter 5.899 km 0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74139 (1998 QC77)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 QC77 = 2001 FR53 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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