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15505 (1999 RF56)
Classification: Outer Main-belt Asteroid          SPK-ID: 2015505
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1176944264078942 3.7078e-08  
a 3.952248776100631 3.2987e-08 au
q 3.487091123376165 1.5686e-07 au
i 7.97976453960626 4.568e-06 deg
node 1.485015657967619 2.8246e-05 deg
peri 215.316748923426 3.4229e-05 deg
M 330.2649385567874 1.8937e-05 deg
tp 2459237.545206125295
(2021-Jan-23.04520613)
0.00015112 TDB
period 2869.887266521362
7.86
3.593e-05
9.837e-08
d
yr
n .1254404673659401 1.5705e-09 deg/d
Q 4.417406428825097 3.6869e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2252  
   data-arc span      11394 days (31.20 yr)  
   first obs. used      1989-04-06  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46251  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 17:50:38  

Additional Information
 Earth MOID = 2.48493 au 
 Jupiter MOID = .631892 au 
 T_jup = 3.031 
[ 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 11.5   n/a MPO347647  
diameter diameter 24.788 km 0.344 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
rotation period rot_per 15.11 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D.; Stephens, R.D.; Coley, D.R. (2017) Minor Planet Bull. 44, 130-137.]
geometric albedo albedo 0.079   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

15505 (1999 RF56)          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
1912-Sep-15 10:48 00:02 Jupiter 1.90811426291094 1.90811343658847 1.90811508923342 4.00174565211289 3.88923606374317 2419660.949926486 1.89702294087152 46.1730622369511 31.9183897253608 55.4072445303817 2505669.7111677 T 32 CATAB v2.0f-lin.ifort 2020-Jun-23 17:50:56 2020-Jun-23 17:51
1981-Jun-27 07:28 00:01 Jupiter 1.98253050568022 1.98252990833388 1.98253110302645 4.78948036593744 4.6994293205302 2444782.810886827 1.26657186476373 50.7665790140688 28.2137202211605 89.4926481058212 3915386.72453752 T 32 CATAB v2.0f-lin.ifort 2020-Jun-23 17:50:56 2020-Jun-23 17:51
2004-Jul-09 14:07 < 00:01 Jupiter 1.85048664505218 1.85048607276447 1.85048721733989 4.41361487160024 4.30865837941771 2453196.088276801 0.527447995714814 52.8503013664236 26.2596392361678 86.355289332325 3512375.06242498 T 32 CATAB v2.0f-lin.ifort 2020-Jun-23 17:50:56 2020-Jun-23 17:51
2027-Dec-06 02:26 < 00:01 Jupiter 1.75748568991124 1.75748516742747 1.75748621239491 4.13522453922116 4.01698635628278 2461745.601614018 0.563795349756498 54.6458578855886 23.4424479959113 86.6910777670117 3445679.79918513 T 32 CATAB v2.0f-lin.ifort 2020-Jun-23 17:50:56 2020-Jun-23 17:51
2051-Oct-27 17:54 00:01 Jupiter 1.75336503079444 1.75336442216728 1.7533656394216 4.17058935002084 4.05310345464154 2470472.246074488 1.32171572091064 55.2920482054362 27.6928981315019 89.5618728833319 3156679.28811687 T 32 CATAB v2.0f-lin.ifort 2020-Jun-23 17:50:56 2020-Jun-23 17:51
2076-Feb-06 07:22 00:02 Jupiter 1.81192422192169 1.81192362825824 1.81192481558515 4.33113213029599 4.2218198672586 2479339.806900378 1.66761790385992 56.5494228799443 27.5756119536807 -88.5215953129912 3585915.86175531 T 32 CATAB v2.0f-lin.ifort 2020-Jun-23 17:50:56 2020-Jun-23 17:51
2100-Jul-15 11:56 00:02 Jupiter 1.84108984879026 1.8410893048618 1.84109039271871 4.24783667734459 4.13811367559485 2488264.997365467 1.69690726889797 53.7025992246895 24.5423765149139 83.264400219704 3744373.80542029 T 32 CATAB v2.0f-lin.ifort 2020-Jun-23 17:50:56 2020-Jun-23 17:51
2124-Nov-22 09:26 00:02 Jupiter 1.8309985217647 1.83099796404634 1.83099907948306 3.94692793539379 3.82792858966881 2497160.892967457 1.54807219575598 50.8053968320177 21.8471014713011 74.4517238196804 3362360.23048005 T 32 CATAB v2.0f-lin.ifort 2020-Jun-23 17:50:56 2020-Jun-23 17:51
2148-Dec-02 03:01 00:01 Jupiter 1.82039824093007 1.82039762766843 1.82039885419172 3.73987540325127 3.61331948273915 2505936.625928224 1.45870288352468 49.6023738935922 23.4360912184977 72.5469037949137 2912497.45919362 T 32 CATAB v2.0f-lin.ifort 2020-Jun-23 17:50:56 2020-Jun-23 17:51
2172-May-29 20:30 00:02 Jupiter 1.88942084047361 1.88942017505347 1.88942150589365 4.04770019222107 3.93538841497926 2514516.354328839 1.55667703714668 48.8783937181856 28.0342303266185 76.480923671825 2718496.8997532 T 32 CATAB v2.0f-lin.ifort 2020-Jun-23 17:50:56 2020-Jun-23 17:51
2195-Jun-26 21:41 00:02 Jupiter 1.98989760497311 1.98989704046854 1.98989816947758 4.6619637282183 4.5697465015286 2522944.403279801 1.56259268704981 51.4869127818407 25.9432453174875 85.485276455084 3617945.08030028 T 32 CATAB v2.0f-lin.ifort 2020-Jun-23 17:50:56 2020-Jun-23 17:51

Alternate Designations
 1999 RF56 = 1989 GG5 = 1997 EV46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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