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JPL Small-Body Database Browser
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74163 (1998 QA104)
Classification: Main-belt Asteroid          SPK-ID: 2074163
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1779925783886812 5.2373e-08  
a 2.614032167750504 1.4744e-08 au
q 2.148753842221638 1.4211e-07 au
i 7.300728872519072 5.1799e-06 deg
node 39.34076509031299 2.9384e-05 deg
peri 345.1728832926852 3.1595e-05 deg
M 296.0163248520308 1.0505e-05 deg
tp 2458874.866762942542
(2020-Jan-26.36676294)
4.5833e-05 TDB
period 1543.706803819789
4.23
1.3061e-05
3.576e-08
d
yr
n .2332049059505384 1.973e-09 deg/d
Q 3.07931049327937 1.7368e-08 au
  Orbit Determination Parameters
   # obs. used (total)      756  
   data-arc span      21556 days (59.02 yr)  
   first obs. used      1960-10-25  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52604  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 08:50:31  

Additional Information
 Earth MOID = 1.15311 au 
 Jupiter MOID = 2.37059 au 
 T_jup = 3.374 
[ 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 15.5   n/a MPO449468  

74163 (1998 QA104)          Discovered 1998-Aug-26 by Elst, E. W. at La Silla
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1907-Jan-13 05:27 00:01 David 0.038049039643922 0.0380475801335502 0.0380505038285887 4.89569571627145 4.89569563517069 2417588.727136057 1.19446406926155 747.860141681476 32.7933598172117 85.0045845876341 172810.481667031 T 17 CATAB v2.0f-lin.ifort 2019-Nov-07 08:50:35 2019-Nov-07 08:50
2006-Apr-28 15:02 00:01 Amphi 0.0159395981516779 0.0159369034070317 0.0159422929687668 2.76544262061849 2.76544249020244 2453854.126654002 1.01219199071216 148.69635050564 73.5734436881169 29.6768567396937 21227.5420178634 T 17 CATAB v2.0f-lin.ifort 2019-Nov-07 08:50:35 2019-Nov-07 08:50

Alternate Designations
 1998 QA104 = 2002 QD10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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