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9669 Symmetria (1997 NC3)
Classification: Outer Main-belt Asteroid          SPK-ID: 2009669
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1806008742363568 4.0372e-08  
a 3.234073314525893 1.7229e-08 au
q 2.649996846578045 1.3244e-07 au
i .4427293610538939 3.4688e-06 deg
node 267.4041715010665 0.00060047 deg
peri 127.7867791560075 0.00060056 deg
M 271.0016686689825 1.0873e-05 deg
tp 2459525.673231163416
(2021-Nov-07.17323116)
6.601e-05 TDB
period 2124.336045308954
5.82
1.6976e-05
4.648e-08
d
yr
n .1694647138313953 1.3542e-09 deg/d
Q 3.818149782473741 2.0341e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1718  
   data-arc span      14082 days (38.55 yr)  
   first obs. used      1981-11-25  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5424  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 17:00:36  

Additional Information
 Earth MOID = 1.65683 au 
 Jupiter MOID = 1.61701 au 
 T_jup = 3.160 
[ 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 13.2   n/a MPO358724  
diameter diameter 11.371 km 3.674 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.072   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

9669 Symmetria           Discovered 1997 July 8 by P. G. Comba at Prescott.
Name suggested by the palindromic shape of the numeral 9669, and the fact that each pair of its digits is invariant under a rotation by 180 degrees.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990202/MPCPages.arcLast Updated: 2010-06-11

[ 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
2009-Jan-20 16:51 < 00:01 Jupiter 1.97834208257251 1.97834161229992 1.97834255284498 3.52120220581187 3.39743574949256 2454852.202252589 0.263678303660618 39.7300041478307 18.3353619889151 88.3928884753754 3292432.33578465 T 22 CATAB v2.0f-lin.ifort 2020-Jun-23 17:00:49 2020-Jun-23 17:00
2020-Apr-12 19:21 < 00:01 Jupiter 1.83524004915476 1.83523964128224 1.83524045702727 2.66441950043998 2.48516935509549 2458952.305942758 0.289272619494536 46.0061125923873 10.5030318912206 -88.9241840076828 3177343.50038786 T 22 CATAB v2.0f-lin.ifort 2020-Jun-23 17:00:49 2020-Jun-23 17:00
2031-Aug-05 11:53 < 00:01 Jupiter 1.72911501776789 1.72911465935809 1.72911537617759 2.10606950611109 1.85898112097826 2463083.995042418 0.541812752590613 50.2966145637708 9.54606846722392 89.1330199707287 2917974.54100916 T 22 CATAB v2.0f-lin.ifort 2020-Jun-23 17:00:49 2020-Jun-23 17:00
2042-Dec-30 02:15 < 00:01 Jupiter 1.66923364791572 1.66923332331436 1.66923397251688 1.79965721662611 1.49127534694348 2467248.593616993 0.877332084710116 54.5849225558409 29.044553129589 80.2208400618494 2728035.13919425 T 22 CATAB v2.0f-lin.ifort 2020-Jun-23 17:00:49 2020-Jun-23 17:00
2054-Jun-20 02:43 00:01 Jupiter 1.64430828600754 1.64430797212477 1.64430859989012 1.65340687588564 1.3051844599359 2471438.613510379 1.2940569936556 62.4126068662013 47.4240191184917 68.5310228349591 2675065.63114326 T 22 CATAB v2.0f-lin.ifort 2020-Jun-23 17:00:49 2020-Jun-23 17:00
2065-Dec-20 21:36 00:02 Jupiter 1.64955563949639 1.64955521895028 1.64955606004232 1.61426451730144 1.25653467936556 2475640.400346877 1.83047349704703 72.177634511752 52.8753918327678 -89.5694379551929 2638561.14304887 T 22 CATAB v2.0f-lin.ifort 2020-Jun-23 17:00:49 2020-Jun-23 17:00
2077-Jun-23 03:43 00:03 Jupiter 1.68423212261467 1.68423140219913 1.68423284303049 1.67041487455138 1.33583663414044 2479842.654596202 2.51785589713836 97.8184253581705 39.676168598012 -79.1395365511454 2446143.02914257 T 22 CATAB v2.0f-lin.ifort 2020-Jun-23 17:00:49 2020-Jun-23 17:00
2088-Dec-10 18:50 00:03 Jupiter 1.74861775044297 1.7486165607237 1.74861894016404 1.83589036164993 1.54974271459759 2484031.284920522 3.35445420980815 145.239203349893 20.8941491501773 -83.3231282870148 2410045.16747845 T 22 CATAB v2.0f-lin.ifort 2020-Jun-23 17:00:49 2020-Jun-23 17:00
2100-May-09 09:01 00:04 Jupiter 1.84739221819839 1.84739048763942 1.8473939487625 2.15717622190579 1.93298128073197 2488197.875577908 4.27864072303363 201.689867006571 4.49654097809296 86.3278849090067 2563178.3917629 T 22 CATAB v2.0f-lin.ifort 2020-Jun-23 17:00:49 2020-Jun-23 17:00
2111-Sep-09 16:51 00:05 Jupiter 1.9774048023367 1.97740262276424 1.97740698191736 2.68300545672207 2.51829646759819 2492338.202263157 5.1783320586723 242.433568609103 10.3740963067127 76.714810649926 2734616.84869307 T 22 CATAB v2.0f-lin.ifort 2020-Jun-23 17:00:49 2020-Jun-23 17:00

Alternate Designations
 1997 NC3 = 1981 WF8 = 1986 RD9 = 1995 FJ21 = 1996 LY5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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