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15503 (1999 RD25)
Classification: Main-belt Asteroid          SPK-ID: 2015503
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06067931323509266 3.0219e-08  
a 2.649632983175632 1.1138e-08 au
q 2.488855073431484 8.0812e-08 au
i 3.55170682883886 3.8993e-06 deg
node 226.0932799278001 5.9295e-05 deg
peri 36.64156071811055 6.9537e-05 deg
M 22.00764724347126 3.5324e-05 deg
tp 2458904.195157725644
(2020-Feb-24.69515773)
0.00015472 TDB
period 1575.349824323136
4.31
9.9329e-06
2.719e-08
d
yr
n .2285206716893357 1.4409e-09 deg/d
Q 2.810410892919779 1.1813e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1598  
   data-arc span      15225 days (41.68 yr)  
   first obs. used      1978-11-30  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48396  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:59:59  

Additional Information
 Earth MOID = 1.47444 au 
 Jupiter MOID = 2.21752 au 
 T_jup = 3.386 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456952.5 (2014-Oct-22.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05903162746766887 3.0321e-08  
q 2.491879157478224 8.0653e-08 au
tp 2457329.621614782998
(2015-Nov-03.12161478)
0.00016142 TDB
node 226.1392217611835 5.9258e-05 deg
peri 36.47179520628544 7.0007e-05 deg
i 3.552871061431328 3.9011e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1598  
   data-arc span      15225 days (41.68 yr)  
   first obs. used      1978-11-30  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48396  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:59:59  

Additional Information
 Jupiter MOID = 2.21752 au 
 T_jup = 3.386 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.193506334414125E-16 -2.424922920518664E-15 -3.002884814666541E-13 -2.732295514916941E-15 -6.61641145968342E-14 -1.550479697449865E-16
q -2.424922920518664E-15 6.504889452502734E-15 3.135212980211494E-13 6.190848347950169E-15 5.921874724140111E-14 5.637672949303559E-16
tp -3.002884814666541E-13 3.135212980211494E-13 2.605612514250346E-8 2.998792613351062E-11 6.030155899265501E-9 -2.992423377747262E-12
node -2.732295514916941E-15 6.190848347950169E-15 2.998792613351062E-11 3.511458947260623E-9 -3.497708074536235E-9 -3.747281217426311E-11
peri -6.61641145968342E-14 5.921874724140111E-14 6.030155899265501E-9 -3.497708074536235E-9 4.900932605905264E-9 3.672570049680555E-11
i -1.550479697449865E-16 5.637672949303559E-16 -2.992423377747262E-12 -3.747281217426311E-11 3.672570049680555E-11 1.52188062129309E-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 14.1   n/a MPO384888  
diameter diameter 9.634 km 0.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15503 (1999 RD25)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20000621/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
2123-Nov-20 15:04 00:03 Iris 0.01364489344178 0.0136375405595936 0.0136522712071414 4.9965989254289 4.99659884110933 2496793.128071631 3.31038810084098 997.620073447128 51.1990231040191 -68.5969105444919 37112.1192201152 T 26 CATAB v2.0f-lin.ifort 2020-Aug-25 01:00:16 2020-Aug-25 01:00
2156-Feb-25 03:42 00:05 Psych 0.0376154644445719 0.0376079419906148 0.0376229988900483 3.12937631230189 3.12937620951707 2508577.653919795 4.54156274966055 1132.47986001668 53.6059141784799 70.8413013275776 99025.8103337344 T 26 CATAB v2.0f-lin.ifort 2020-Aug-25 01:00:16 2020-Aug-25 01:00

Alternate Designations
 1999 RD25 = 1978 WU18 = 1989 GV = 1998 KJ38 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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