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 ]  
7924 Simbirsk (1986 PW4)
Classification: Main-belt Asteroid          SPK-ID: 2007924
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 .1608537023440762 2.9409e-08  
a 3.102809221120771 1.389e-08 au
q 2.603710870236156 8.9752e-08 au
i 1.162887382066992 3.9066e-06 deg
node 191.0140810956884 0.00016125 deg
peri 114.2627593278995 0.00016169 deg
M 90.5064439394631 1.1835e-05 deg
tp 2458498.610583401998
(2019-Jan-15.11058340)
6.5454e-05 TDB
period 1996.324041812229
5.47
1.3405e-05
3.67e-08
d
yr
n .1803314454266644 1.2109e-09 deg/d
Q 3.601907572005386 1.6125e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2329  
   data-arc span      24699 days (67.62 yr)  
   first obs. used      1952-05-24  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47936  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 21:02:50  

Additional Information
 Earth MOID = 1.58892 au 
 Jupiter MOID = 1.6458 au 
 T_jup = 3.201 
[ 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 12.9   n/a MPO332893  
diameter diameter 12.997 km 0.445 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.087   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7924 Simbirsk           Discovered 1986 Aug. 6 by N. S. Chernykh and L. I. Chernykh at the Crimean Astrophysical Observatory.
Named for the city of Simbirsk (Ul'yanovsk since 1924), a large industrial and cultural center on the Volga river. Founded in 1648, it is connected with many great events and people in Russian history.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19980808/MPCPages.arcLast Updated: 2009-11-17

[ 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
1905-Dec-31 16:48 00:02 Jupiter 1.74972284369876 1.74972207988086 1.74972360751686 2.34640899865604 2.13013054089005 2417211.199856232 2.41532130769434 77.0079530304807 5.90966935647632 88.5374701419692 2298406.05467382 T 32 CATAB v2.0f-lin.ifort 2020-Jan-28 21:03:25 2020-Jan-28 21:03
1966-Dec-25 09:56 00:01 Jupiter 1.66961261015952 1.66961222282958 1.66961299748918 1.57911229256862 1.21612583456583 2439484.913770577 1.03508572535733 63.9577237041699 47.0812244884449 -62.688653399773 2854868.39948739 T 32 CATAB v2.0f-lin.ifort 2020-Jan-28 21:03:25 2020-Jan-28 21:03
1976-Dec-02 11:25 < 00:01 Jupiter 1.81626067664602 1.81626027150415 1.81626108178789 2.71018385038005 2.53226898409352 2443114.975837010 0.803916227075117 41.4856439207829 8.88146302759716 -85.8097333578361 3125899.27405381 T 32 CATAB v2.0f-lin.ifort 2020-Jan-28 21:03:25 2020-Jan-28 21:03
2027-Dec-08 20:00 < 00:01 Jupiter 1.97269561749306 1.97269523049441 1.97269600449161 2.45025132202704 2.26825599454171 2461748.333425459 0.372504131315586 40.9205429289108 7.29870601286117 -89.8030512208265 3297441.26711238 T 32 CATAB v2.0f-lin.ifort 2020-Jan-28 21:03:25 2020-Jan-28 21:03
2037-Nov-26 17:07 < 00:01 Jupiter 1.65366594466054 1.65366566239515 1.65366622692584 1.58898186857361 1.22492671458632 2465389.213232362 0.605583878602136 67.6795343690224 44.8896195101244 -51.6950946776103 3148556.55218577 T 32 CATAB v2.0f-lin.ifort 2020-Jan-28 21:03:25 2020-Jan-28 21:03
2047-Nov-05 15:41 < 00:01 Jupiter 1.88912717215116 1.88912659431604 1.88912774998638 3.12709978747162 2.98027160408516 2469020.153250246 0.803182959143644 43.3785154956581 14.0686520194677 -72.5067240937649 2820886.14775928 T 32 CATAB v2.0f-lin.ifort 2020-Jan-28 21:03:25 2020-Jan-28 21:03
2098-Nov-13 01:00 00:02 Jupiter 1.89517317120562 1.89517228278973 1.89517405962172 2.15994987485766 1.94203758592158 2487655.541870294 1.91824806466324 86.926234763954 5.74648063191472 -86.3258678915221 2283697.10285298 T 32 CATAB v2.0f-lin.ifort 2020-Jan-28 21:03:25 2020-Jan-28 21:03
2108-Oct-28 20:32 00:02 Jupiter 1.65637713327186 1.65637675199077 1.65637751455267 1.67053575347027 1.32964227038896 2491292.355853611 2.20865336277818 84.1989176691522 43.6608491890818 -35.6992867944099 2160497.75236108 T 32 CATAB v2.0f-lin.ifort 2020-Jan-28 21:03:25 2020-Jan-28 21:03
2118-Oct-13 13:33 00:02 Jupiter 1.96330028729495 1.96329909682399 1.96330147776724 3.56618620858662 3.44308412307919 2494929.064781801 2.31647775860966 108.980582703871 15.4705707315662 -67.2544046653677 3065049.44918833 T 32 CATAB v2.0f-lin.ifort 2020-Jan-28 21:03:25 2020-Jan-28 21:03
2169-Oct-16 09:42 00:04 Jupiter 1.82307808182232 1.8230766958244 1.82307946782127 1.9145994893289 1.65422754844283 2513559.904010921 3.52952540361456 139.846711395031 13.5550745391648 84.6623409484984 2004715.62550277 T 32 CATAB v2.0f-lin.ifort 2020-Jan-28 21:03:25 2020-Jan-28 21:03
2179-Sep-29 18:37 00:04 Jupiter 1.68243919002579 1.68243838526531 1.68243999478474 1.83576959669465 1.53725462712849 2517195.275405324 3.84092373047851 81.674030094946 43.7583760504628 -3.32618833800864 918266.808879673 T 32 CATAB v2.0f-lin.ifort 2020-Jan-28 21:03:25 2020-Jan-28 21:03

Alternate Designations
 1986 PW4 = 1981 TV3 = 1989 AL4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-21 22:47 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin