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115488 (2003 UL21)
Classification: Main-belt Asteroid          SPK-ID: 2115488
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1432041073532505 3.7581e-08  
a 3.176895004826898 2.459e-08 au
q 2.721950591505662 1.1504e-07 au
i 22.34216371387218 5.7021e-06 deg
node 23.25687642563245 1.0046e-05 deg
peri 249.5410063529401 2.2815e-05 deg
M 172.5035308154455 2.2544e-05 deg
tp 2458405.443971896451
(2018-Oct-13.94397190)
0.00012613 TDB
period 2068.248507324655
5.66
2.4013e-05
6.574e-08
d
yr
n .1740603214386802 2.0209e-09 deg/d
Q 3.631839418148134 2.8111e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1294  
   data-arc span      7745 days (21.20 yr)  
   first obs. used      2000-01-29  
   last obs. used      2021-04-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50087  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 00:35:08  

Additional Information
 Earth MOID = 1.79611 au 
 Jupiter MOID = 1.64885 au 
 T_jup = 3.068 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457821.5 (2017-Mar-09.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1452015326754314 3.7272e-08  
q 2.713880601622961 1.1445e-07 au
tp 2458407.215235104452
(2018-Oct-15.71523510)
0.00012512 TDB
node 23.29419569524243 1.0034e-05 deg
peri 249.8843709963683 2.2697e-05 deg
i 22.36600056895488 5.7069e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1294  
   data-arc span      7745 days (21.20 yr)  
   first obs. used      2000-01-29  
   last obs. used      2021-04-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50087  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 00:35:08  

Additional Information
 Jupiter MOID = 1.64885 au 
 T_jup = 3.068 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.38922682180276E-15 -4.200106344866512E-15 2.048124909105439E-13 -1.096504890614546E-15 -2.030024935379273E-14 2.992268103217317E-15
q -4.200106344866512E-15 1.309924537867861E-14 -2.943523756460513E-14 2.65897867336659E-15 1.32554973038585E-13 -8.215370472548103E-15
tp 2.048124909105439E-13 -2.943523756460513E-14 1.565421197350161E-8 4.325872374826316E-12 2.550706020451949E-9 -2.720105191249738E-12
node -1.096504890614546E-15 2.65897867336659E-15 4.325872374826316E-12 1.006854286456302E-10 -9.19218940479882E-11 -2.795355433724639E-12
peri -2.030024935379273E-14 1.32554973038585E-13 2.550706020451949E-9 -9.19218940479882E-11 5.15173344665418E-10 1.846365290460664E-12
i 2.992268103217317E-15 -8.215370472548103E-15 -2.720105191249738E-12 -2.795355433724639E-12 1.846365290460664E-12 3.25682803779083E-11

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 13.46   n/a E2021B55  
diameter diameter 9.157 km 0.233 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.133   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

115488 (2003 UL21)          Discovered 2003-Oct-18 by NEAT at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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
1941-Aug-06 05:19 00:03 Jupiter 1.95120799155425 1.95120560570292 1.95121037786565 5.29766262716714 5.21507680779665 2430212.721223646 2.63817468898077 1590.9235229868 35.3266714921278 85.7571115236036 2343664.77700939 T 30 CATAB v2.0g-lin.ifort 2021-Jul-09 00:35:12 2021-Jul-09 00:35
1952-Aug-11 06:30 00:02 Jupiter 1.68515231193746 1.68515165702472 1.68515296685077 6.1025933560919 6.01966515463585 2434235.770803260 1.77546998448878 158.554033804326 30.3781908874045 -85.6534494235349 3490590.57111789 T 30 CATAB v2.0g-lin.ifort 2021-Jul-09 00:35:12 2021-Jul-09 00:35
1963-Aug-26 23:26 00:02 Jupiter 1.84073282097181 1.8407315375712 1.84073410437754 6.42606880043314 6.35405776802204 2438268.476371092 1.5022932340502 234.507028516833 46.3627514761459 79.0707709782562 3444431.63020328 T 30 CATAB v2.0g-lin.ifort 2021-Jul-09 00:35:12 2021-Jul-09 00:35
2072-Jan-11 10:14 00:02 Jupiter 1.95195455689443 1.95195280530365 1.95195630879446 5.27815930089783 5.19529541680133 2477852.926508510 2.16611544663749 1408.97610670799 39.5837784552188 86.6883946831275 2500326.41253083 T 30 CATAB v2.0g-lin.ifort 2021-Jul-09 00:35:12 2021-Jul-09 00:35
2083-Jan-15 08:40 00:02 Jupiter 1.70608593472447 1.70608533435086 1.70608653509826 6.13684865154805 6.05540824351839 2481874.861125045 2.22926266804683 137.441337852527 29.1819495555882 -87.0324183071105 3430682.86898333 T 30 CATAB v2.0g-lin.ifort 2021-Jul-09 00:35:12 2021-Jul-09 00:35
2094-Jan-28 05:47 00:03 Jupiter 1.8702303896387 1.8702281426379 1.87023263668192 6.5066987627913 6.43671763846671 2485905.741072502 2.80558211795036 501.944459904186 45.325390934819 78.235384443894 3119980.02162457 T 30 CATAB v2.0g-lin.ifort 2021-Jul-09 00:35:12 2021-Jul-09 00:35
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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