Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04833271754366047 3.8668e-08  
a 3.202554638737629 2.664e-08 au
q 3.047766469965384 1.3212e-07 au
i 21.29946899250436 5.5075e-06 deg
node 348.5081739222646 1.1436e-05 deg
peri 278.0905746064217 6.3427e-05 deg
M .1627982621103533 6.3925e-05 deg
tp 2458999.553347660555
(2020-May-30.05334766)
0.00037172 TDB
period 2093.356758127922
5.73
2.612e-05
7.151e-08
d
yr
n .1719725978872068 2.1458e-09 deg/d
Q 3.357342807509875 2.7927e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1188  
   data-arc span      14573 days (39.90 yr)  
   first obs. used      1979-06-15  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48745  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:11:19  

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 16:37 00:01 Jupiter 1.93612142211319 1.93612052970751 1.93612231452349 5.9299853119697 5.8557456755173 2447038.192042639 1.04120274180037 407.959858677983 40.8294017585604 87.4567622934324 3534226.71321736 T 19 CATAB v2.0e-lin.ifort 2019-May-30 02:11:27 2019-May-30 02:11
1998-Nov-06 05:35 < 00:01 Jupiter 1.79638732720888 1.79638678503021 1.79638786938969 6.45723962995 6.38380096908819 2451123.732345545 0.563245680235417 222.352310524736 23.2226635645805 86.7086662053351 3694324.2431933 T 19 CATAB v2.0e-lin.ifort 2019-May-30 02:11:27 2019-May-30 02:11
2010-Jan-20 05:39 < 00:01 Jupiter 1.87974630968127 1.87974578810458 1.87974683126406 6.59629550892832 6.52762629503571 2455216.735230931 0.239582356050773 328.725754293713 21.1885473518303 87.5163686279077 3935818.36750724 T 19 CATAB v2.0e-lin.ifort 2019-May-30 02:11:27 2019-May-30 02:11
2153-Oct-24 16:46 00:05 Jupiter 1.9914769735312 1.99147367687195 1.99148027057353 5.74435649792835 5.66983103924983 2507724.198852452 4.98047190242522 1520.97598342339 65.9475101884319 84.0736590703183 3445149.24290791 T 19 CATAB v2.0e-lin.ifort 2019-May-30 02:11:27 2019-May-30 02:11
2164-Dec-23 20:18 00:05 Jupiter 1.82338882191822 1.82338769601608 1.82338994784471 6.42293802283592 6.3502022629074 2511802.345764667 4.76890761213678 500.875081044129 42.1407520331275 -85.5295662389641 3461114.54438099 T 19 CATAB v2.0e-lin.ifort 2019-May-30 02:11:27 2019-May-30 02:11
2176-Mar-07 21:43 00:05 Jupiter 1.87032136822688 1.87031892565845 1.87032381111489 6.64503568340059 6.57653012287974 2515894.404994632 5.18997164219664 1260.1599375622 24.7302925346237 84.5832383564036 3322535.46306978 T 19 CATAB v2.0e-lin.ifort 2019-May-30 02:11:27 2019-May-30 02:11

Alternate Designations
 1998 QU50 = 1990 EG10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Mar-28 18:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin