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
JPL Small-Body Database Browser
Search: [ help ]  
15256 (1990 RD1)
Classification: Main-belt Asteroid          SPK-ID: 2015256
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 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08381924021821126 2.108e-08  
a 3.16417733147459 1.3461e-08 au
q 2.898958391634702 6.797e-08 au
i 9.596091608307484 4.3344e-07 deg
node 169.4317095477286 1.8266e-06 deg
peri 248.1506588670051 5.705e-06 deg
M 107.4205283910225 7.0882e-06 deg
tp 2458783.056692603639
(2019-Oct-26.55669260)
3.8215e-05 TDB
period 2055.841597229999
5.63
1.3119e-05
3.592e-08
d
yr
n .1751107675246269 1.1174e-09 deg/d
Q 3.429396271314477 1.4589e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2865  
   data-arc span      13018 days (35.64 yr)  
   first obs. used      1985-11-06  
   last obs. used      2021-06-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46703  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 03:46:16  

Additional Information
 Earth MOID = 1.92692 au 
 Jupiter MOID = 1.90456 au 
 T_jup = 3.177 
[ 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 12.8   n/a MPO502286  
diameter diameter 15.408 km 0.235 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 22.824 h n/a LCDB (Rev. 2020-October); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.062   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15256 (1990 RD1)          Discovered 1990-Sep-14 by Holt, H. E. at Palomar
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
1951-Mar-21 02:30 00:01 Jupiter 1.99022933050637 1.99022911939841 1.99022954161547 4.78382342748929 4.69401595343021 2433726.604309451 1.29001352237787 94.3541743407346 5.62202330251305 85.4705095567874 15820877.0076231 T 43 CATAB v2.0g-lin.ifort 2021-Jul-08 03:47:59 2021-Jul-08 03:48
1961-Dec-06 17:00 00:01 Jupiter 1.98347785736156 1.98347777248958 1.98347794223366 3.96925200660943 3.86016623743762 2437640.208151015 1.1237923194351 60.4040805885353 3.28191281643006 -85.8111913840292 19502337.7820112 T 43 CATAB v2.0g-lin.ifort 2021-Jul-08 03:47:59 2021-Jul-08 03:48
2069-Feb-25 04:49 < 00:01 Jupiter 1.95877430233677 1.9587742089924 1.95877439568137 4.29549358382332 4.19361605360397 2476802.700724063 0.981042198930962 64.101090044483 3.64203986619598 -86.7077839647824 20860618.421589 T 43 CATAB v2.0g-lin.ifort 2021-Jul-08 03:47:59 2021-Jul-08 03:48
2176-May-15 12:19 00:03 Jupiter 1.95837038052354 1.95837015143241 1.95837060962256 4.55303863618605 4.45703185093708 2515963.013163547 3.03440885507248 219.011052605169 4.38071566249302 88.0676927977592 19357353.3633896 T 43 CATAB v2.0g-lin.ifort 2021-Jul-08 03:47:59 2021-Jul-08 03:48
2187-Jan-29 03:57 00:03 Jupiter 1.96168271843768 1.9616823309281 1.96168310595173 3.71787921413597 3.59986924267268 2519873.664433940 3.35170060691864 157.53738965578 4.10844335773504 -79.9570593684895 15828004.9340456 T 43 CATAB v2.0g-lin.ifort 2021-Jul-08 03:47:59 2021-Jul-08 03:48

Alternate Designations
 1990 RD1 = 1985 VU = 1996 TR27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Aug-01 00:32 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin