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49031 (1998 QT103)
Classification: Main-belt Asteroid          SPK-ID: 2049031
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1609853717024614 3.6292e-08  
a 2.484215155412523 1.2309e-08 au
q 2.08429285522955 8.9354e-08 au
i 9.493378878043425 3.3267e-06 deg
node 140.6850975643772 3.137e-05 deg
peri 153.0944493716289 3.4609e-05 deg
M 143.5254456389802 1.5905e-05 deg
tp 2458030.324383873865
(2017-Oct-03.82438387)
6.2767e-05 TDB
period 1430.152130108843
3.92
1.0629e-05
2.91e-08
d
yr
n .2517214724370631 1.8708e-09 deg/d
Q 2.884137455595496 1.429e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1081  
   data-arc span      7452 days (20.40 yr)  
   first obs. used      1998-08-26  
   last obs. used      2019-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54754  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:48:56  

Additional Information
 Earth MOID = 1.07254 au 
 Jupiter MOID = 2.34458 au 
 T_jup = 3.440 
[ 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 15.0   n/a MPO468359  
diameter diameter 2.908 km 0.547 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.229   0.100 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49031 (1998 QT103)          Discovered 1998-Aug-26 by Elst, E. W. at La Silla
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QT103 = 2000 AT121 = 2001 GC7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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