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13720 (1998 QU50)
Classification: Outer Main-belt Asteroid          SPK-ID: 2013720
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04833270404238064 3.8209e-08  
a 3.202554649238285 2.6245e-08 au
q 3.047766523197101 1.306e-07 au
i 21.2994702167157 5.4567e-06 deg
node 348.5081817118348 1.1337e-05 deg
peri 278.0905866223902 6.2462e-05 deg
M .1627788517557158 6.2797e-05 deg
tp 2458999.553460524780
(2020-May-30.05346052)
0.00036515 TDB
period 2093.356768423587
5.73
2.5733e-05
7.045e-08
d
yr
n .1719725970414016 2.114e-09 deg/d
Q 3.357342775279469 2.7513e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1239  
   data-arc span      15003 days (41.08 yr)  
   first obs. used      1979-06-15  
   last obs. used      2020-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49987  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:44:34  

Additional Information
 Earth MOID = 2.11113 au 
 Jupiter MOID = 1.79282 au 
 T_jup = 3.085 
[ 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 13.2   n/a MPO473953  
diameter diameter 12.314 km 0.130 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.081   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13720 (1998 QU50)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20000222/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
1987-Aug-30 16:36 00:01 Jupiter 1.93612132288516 1.93612043808624 1.9361222076888 5.92998622059732 5.85574659183561 2447038.191947224 1.02773284241923 405.40507765237 40.3910188503247 87.4334287135342 3574156.66786213 T 21 CATAB v2.0f-lin.ifort 2020-Nov-13 02:44:37 2020-Nov-13 02:44
1998-Nov-06 05:35 < 00:01 Jupiter 1.79638733009733 1.79638679451066 1.79638786568616 6.45724017016285 6.38380151563436 2451123.732293413 0.556884726643439 219.747916027357 23.0007498008698 86.7362022674636 3746913.25278799 T 21 CATAB v2.0f-lin.ifort 2020-Nov-13 02:44:37 2020-Nov-13 02:44
2010-Jan-20 05:39 < 00:01 Jupiter 1.87974636775148 1.87974585392511 1.87974688158383 6.59629576733879 6.52762655829714 2455216.735217047 0.238443891902286 324.94267956518 20.9350688003272 87.5411430266843 3992166.71679353 T 21 CATAB v2.0f-lin.ifort 2020-Nov-13 02:44:37 2020-Nov-13 02:44
2153-Oct-24 16:47 00:05 Jupiter 1.99147741097977 1.99147417993166 1.99148064239442 5.74435526052515 5.66982980205981 2507724.199339695 4.88577362723806 1490.76098830682 65.3183041975116 84.0845698264118 3483667.49299574 T 21 CATAB v2.0f-lin.ifort 2020-Nov-13 02:44:37 2020-Nov-13 02:44
2164-Dec-23 20:19 00:05 Jupiter 1.82338895516292 1.82338785501187 1.82339005533741 6.42293772795545 6.35020196999497 2511802.346235558 4.6792290772758 494.216038538078 41.4188658990997 -85.6032704856932 3496232.31392494 T 21 CATAB v2.0f-lin.ifort 2020-Nov-13 02:44:37 2020-Nov-13 02:44
2176-Mar-07 21:44 00:05 Jupiter 1.87032106453524 1.87031865950496 1.87032346987447 6.64503584018655 6.57653027011742 2515894.405511703 5.09371979712487 1239.53711986 24.4992115286525 84.5794832181589 3356773.78522097 T 21 CATAB v2.0f-lin.ifort 2020-Nov-13 02:44:37 2020-Nov-13 02:44

Alternate Designations
 1998 QU50 = 1990 EG10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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