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JPL Small-Body Database Browser
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13719 (1998 QU45)
Classification: Main-belt Asteroid          SPK-ID: 2013719
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1149457113235036 3.184e-08  
a 2.154416492650647 6.7271e-09 au
q 1.906775556415831 6.7405e-08 au
i 5.131080445825597 4.3205e-06 deg
node 198.9925142902318 3.2188e-05 deg
peri 97.68910130269792 3.8675e-05 deg
M 354.7235861073436 2.3177e-05 deg
tp 2459017.428921020202
(2020-Jun-16.92892102)
7.4391e-05 TDB
period 1155.029095756659
3.16
5.4098e-06
1.481e-08
d
yr
n .3116804601049154 1.4598e-09 deg/d
Q 2.402057428885463 7.5004e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1748  
   data-arc span      10264 days (28.10 yr)  
   first obs. used      1991-04-08  
   last obs. used      2019-05-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50146  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:44:01  

Additional Information
 Earth MOID = .899405 au 
 Jupiter MOID = 2.75649 au 
 T_jup = 3.688 
[ 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 MPO473953  
diameter diameter 2.752 km 0.073 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.233   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13719 (1998 QU45)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20000222/Numbers.arcLast Updated: 2004-04-19

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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
1978-Jan-31 23:41 < 00:01 Iris 0.0416209330284864 0.0416179422458488 0.0416239241041771 6.07981740897783 6.0798173862598 2443540.486945563 0.241366243884928 237.807752671475 50.908482173188 -52.8892280250448 98781.3752975723 T 29 CATAB v2.0f-lin.ifort 2020-Feb-22 20:44:16 2020-Feb-22 20:44
2000-Mar-16 03:13 < 00:01 Iris 0.0461068264447962 0.04610540024654 0.0461082526664304 5.67840281582405 5.67840279386662 2451619.633840241 0.250478016003137 102.435582297815 50.6485677864262 55.9167929235905 118901.272674541 T 29 CATAB v2.0f-lin.ifort 2020-Feb-22 20:44:16 2020-Feb-22 20:44

Alternate Designations
 1998 QU45 = 1991 GB4 = 1997 EZ40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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