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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
91550 (1999 RW210)
Classification: Main-belt Asteroid          SPK-ID: 2091550
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1008969929521037 4.6469e-08  
a 3.121192105783709 3.4532e-08 au
q 2.806273207884288 1.5502e-07 au
i 9.900770912074647 7.6416e-06 deg
node 315.3066638064293 3.1423e-05 deg
peri 97.91782766700463 5.4865e-05 deg
M 247.4194516667709 4.5172e-05 deg
tp 2459630.354208340811
(2022-Feb-19.85420834)
0.00025723 TDB
period 2014.091407083382
5.51
3.3425e-05
9.151e-08
d
yr
n .178740646394653 2.9663e-09 deg/d
Q 3.436111003683129 3.8016e-08 au
  Orbit Determination Parameters
   # obs. used (total)      655  
   data-arc span      8466 days (23.18 yr)  
   first obs. used      1996-03-27  
   last obs. used      2019-06-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54074  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 14:03:32  

Additional Information
 Earth MOID = 1.83981 au 
 Jupiter MOID = 1.90663 au 
 T_jup = 3.185 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456698.5 (2014-Feb-10.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .105805117204564 4.7094e-08  
q 2.784088459346649 1.5765e-07 au
tp 2457616.156509538491
(2016-Aug-15.65650954)
0.00022732 TDB
node 315.568852965126 3.1572e-05 deg
peri 97.14347782853891 5.2599e-05 deg
i 9.881308885909599 7.6321e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      655  
   data-arc span      8466 days (23.18 yr)  
   first obs. used      1996-03-27  
   last obs. used      2019-06-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54074  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 14:03:32  

Additional Information
 Jupiter MOID = 1.90663 au 
 T_jup = 3.185 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.217876619887075E-15 -7.29871611127225E-15 -3.54292130118574E-12 8.86696260957718E-16 -5.93425332494105E-13 -2.736215510145574E-15
q -7.29871611127225E-15 2.485364012885188E-14 1.352508081755431E-11 -6.593492734866063E-15 2.226908288762975E-12 1.104243662392651E-14
tp -3.54292130118574E-12 1.352508081755431E-11 5.167437840437128E-8 -4.732651535384765E-11 9.570921131836519E-9 1.214577898811599E-11
node 8.86696260957718E-16 -6.593492734866063E-15 -4.732651535384765E-11 9.968077369431647E-10 -9.904770749415948E-10 8.896925226028878E-11
peri -5.93425332494105E-13 2.226908288762975E-12 9.570921131836519E-9 -9.904770749415948E-10 2.766604050362923E-9 -8.566057508427296E-11
i -2.736215510145574E-15 1.104243662392651E-14 1.214577898811599E-11 8.896925226028878E-11 -8.566057508427296E-11 5.824935139049775E-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 14.3   n/a MPO436411  
diameter diameter 7.701 km 0.108 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.082   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91550 (1999 RW210)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ 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
1938-Jul-14 14:50 00:03 Jupiter 1.97473956847952 1.97473827519453 1.97474086176686 4.55003689717556 4.45477028872269 2429094.118402214 3.48439912539603 164.704053933763 40.0640940796517 73.739820196158 1694080.3023235 T 19 CATAB v2.0f-lin.ifort 2020-Jan-29 14:03:46 2020-Jan-29 14:03
1948-Sep-29 18:34 00:03 Jupiter 1.96257540744639 1.96257460051988 1.9625762143758 3.53374012226212 3.40942000331887 2432824.273868675 3.15791343029337 181.02162261517 22.0837642900033 77.9467627707752 2000146.4065025 T 19 CATAB v2.0f-lin.ifort 2020-Jan-29 14:03:46 2020-Jan-29 14:03
2020-Apr-24 11:16 < 00:01 Jupiter 1.9218701424506 1.92186946998446 1.92187081491674 3.82837173964947 3.71146515862209 2458963.969494552 0.416589867694541 74.9983431184502 25.7347088433707 79.7316678586457 2071662.66369267 T 19 CATAB v2.0f-lin.ifort 2020-Jan-29 14:03:46 2020-Jan-29 14:03
2091-Nov-15 00:32 00:04 Jupiter 1.90287783585835 1.90287711413418 1.90287855758339 4.06308547540246 3.95201332945238 2485100.522391397 3.53760454396452 174.58732249119 27.9995712142665 83.7429374469456 2042757.63149984 T 19 CATAB v2.0f-lin.ifort 2020-Jan-29 14:03:46 2020-Jan-29 14:03
2163-Jun-06 23:10 00:07 Jupiter 1.91150305693585 1.91150211559199 1.91150399827981 4.23353285129353 4.12753718912784 2511236.465556203 6.78716920152313 158.770160015369 40.2923505966345 -87.6237070305224 1791743.79019187 T 19 CATAB v2.0f-lin.ifort 2020-Jan-29 14:03:46 2020-Jan-29 14:03
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jun-01 16:23 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin