+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   249523 Friedan (2010 DO53) Classification: Main-belt Asteroid          SPK-ID: 2249523 [ 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 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1924064591384661 6.9218e-08   a 3.189019015580521 4.426e-08 au q 2.575431158667436 2.198e-07 au i 27.53419093294604 7.5251e-06 deg node 201.6558303088341 1.1608e-05 deg peri 155.5014644346787 1.9296e-05 deg M 180.5053205481018 1.7347e-05 deg tp 2460037.629934106094 (2023-Apr-03.12993411) 0.00011288 TDB period 2080.099406947884 5.70 4.3304e-05 1.186e-07 d yr n .1730686518142061 3.603e-09 deg/d Q 3.802606872493605 5.2776e-08 au   Orbit Determination Parameters    # obs. used (total)      337      data-arc span      7148 days (19.57 yr)      first obs. used      2000-10-01      last obs. used      2020-04-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .64715      source      ORB      producer      Otto Matic      solution date      2020-May-21 13:45:10   Additional Information  Earth MOID = 1.59231 au   Jupiter MOID = 1.73346 au   T_jup = 2.994  [ 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 15.3   n/a MPO294457   diameter diameter 5.430 km 1.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   geometric albedo albedo 0.055   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   249523 Friedan           Discovered 2010 Feb. 22 at WISE. Betty Friedan (1921-2006) was an author and social activist who wrote The Feminine Mystique, a book that made an enormous impact on women's lives. She was a founder of the National Organization for Women and a convener of the National Women's Political Caucus. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: MPC batch dated 2016-02-22 Last Updated: 2016-02-25 [ 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 1935-Jan-01 09:50 00:06 Jupiter 1.98954973089028 1.98954415589665 1.98955530606317 6.67356486665823 6.60946264534165 2427803.910059506 5.69133380451873 1001.97743362221 51.1982819944832 -74.1547844931444 3596186.86429345 T 14 CATAB v2.0f-lin.ifort 2020-May-21 13:45:27 2020-May-21 13:45 1946-May-01 19:25 00:04 Jupiter 1.79658613915766 1.79658429667078 1.79658798184042 6.66125885423099 6.59010205185636 2431942.308788792 4.12737410092837 1021.25235743768 34.777634947038 -85.2452237447044 3367798.93340634 T 14 CATAB v2.0f-lin.ifort 2020-May-21 13:45:27 2020-May-21 13:45 1957-Sep-16 07:04 00:03 Jupiter 1.80092389281916 1.80092267544991 1.80092511027296 6.61733754883821 6.545876787664 2436097.794471200 3.12639195251707 786.29349294462 36.948609850937 86.4794090221992 3086948.72514438 T 14 CATAB v2.0f-lin.ifort 2020-May-21 13:45:27 2020-May-21 13:45 1969-Jan-24 02:59 00:03 Jupiter 1.99268351175627 1.99268103927319 1.99268598428047 6.52493266089488 6.4594592437102 2440245.624607222 2.53703245161062 510.90628464181 49.7104708208717 77.1411438399019 2843901.4807463 T 14 CATAB v2.0f-lin.ifort 2020-May-21 13:45:27 2020-May-21 13:45 2100-Dec-17 01:32 00:04 Jupiter 1.92826749643675 1.92826440734242 1.92827058562437 6.65517748596555 6.58884323670086 2488419.564173105 3.63448285552006 723.900777770252 48.0713261749215 -78.2995531779859 3289710.62567564 T 14 CATAB v2.0f-lin.ifort 2020-May-21 13:45:27 2020-May-21 13:45 2112-Apr-22 17:08 00:04 Jupiter 1.76557614296339 1.76557514431668 1.76557714172511 6.65490323072062 6.58241986864582 2492564.213823503 4.03454652440186 1030.02175102046 35.467682271409 -88.0754713265802 3180557.36125026 T 14 CATAB v2.0f-lin.ifort 2020-May-21 13:45:27 2020-May-21 13:45 2123-Sep-08 16:59 00:05 Jupiter 1.80592322290234 1.80592027475211 1.80592617133745 6.62038011218431 6.54915135881416 2496720.207682292 4.9656997811681 1188.29336712614 38.5673672658013 83.1354283940485 3040567.11499107 T 14 CATAB v2.0f-lin.ifort 2020-May-21 13:45:27 2020-May-21 13:45 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-17 07:55 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin