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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 ]

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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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06067931522417113 2.9634e-08  
a 2.649632982590072 1.0958e-08 au
q 2.488855067611128 7.8882e-08 au
i 3.55170721997355 3.6951e-06 deg
node 226.0932788260961 5.9137e-05 deg
peri 36.64156053372986 6.9175e-05 deg
M 22.00764882000458 3.4704e-05 deg
tp 2458904.195150858704
(2020-Feb-24.69515086)
0.00015203 TDB
period 1575.349823800916
4.31
9.7724e-06
2.676e-08
d
yr
n .2285206717650891 1.4176e-09 deg/d
Q 2.810410897569015 1.1623e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1748  
   data-arc span      15309 days (41.91 yr)  
   first obs. used      1978-11-30  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47714  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:33:14  

Additional Information
 Earth MOID = 1.47444 au 
 Jupiter MOID = 2.21752 au 
 T_jup = 3.386 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457079.5 (2015-Feb-26.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05903132194092239 2.9719e-08  
q 2.491417027465992 7.8757e-08 au
tp 2457330.322544687729
(2015-Nov-03.82254469)
0.00015906 TDB
node 226.1326163388166 5.9093e-05 deg
peri 36.66373901742936 6.9638e-05 deg
i 3.553291221230738 3.6973e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1748  
   data-arc span      15309 days (41.91 yr)  
   first obs. used      1978-11-30  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47714  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:33:14  

Additional Information
 Jupiter MOID = 2.21752 au 
 T_jup = 3.386 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.832080292716872E-16 -2.3206458614983E-15 -1.277671711893995E-13 -1.967204584806936E-15 -3.062993291341197E-14 -2.797564800981788E-16
q -2.3206458614983E-15 6.202619862932085E-15 -1.933407279279069E-13 4.289722535541604E-15 -4.528480478369667E-14 9.453354928278268E-16
tp -1.277671711893995E-13 -1.933407279279069E-13 2.529895423664075E-8 2.956285835978019E-11 5.874345214795575E-9 -3.255856225850858E-12
node -1.967204584806936E-15 4.289722535541604E-15 2.956285835978019E-11 3.491971540397047E-9 -3.478305401583989E-9 -3.282009448760183E-11
peri -3.062993291341197E-14 -4.528480478369667E-14 5.874345214795575E-9 -3.478305401583989E-9 4.849444991445435E-9 3.201135939406521E-11
i -2.797564800981788E-16 9.453354928278268E-16 -3.255856225850858E-12 -3.282009448760183E-11 3.201135939406521E-11 1.366982862546648E-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

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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
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 27 CATAB v2.0f-lin.ifort 2020-Nov-13 02:33:19 2020-Nov-13 02:33
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 27 CATAB v2.0f-lin.ifort 2020-Nov-13 02:33:19 2020-Nov-13 02:33

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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