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JPL Small-Body Database Browser
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48820 (1997 WW33)
Classification: Main-belt Asteroid          SPK-ID: 2048820
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1469936393444251 3.8274e-08  
a 3.107581273951079 1.7037e-08 au
q 2.650786592934425 1.2178e-07 au
i .460038658413892 4.7458e-06 deg
node 13.24181931969296 0.00053204 deg
peri 76.23840340818852 0.00053231 deg
M 304.5306217639752 1.5901e-05 deg
tp 2458908.806703430994
(2020-Feb-29.30670343)
8.8952e-05 TDB
period 2000.931266308568
5.48
1.6455e-05
4.505e-08
d
yr
n .1799162250406275 1.4796e-09 deg/d
Q 3.564375954967733 1.9541e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1035  
   data-arc span      10278 days (28.14 yr)  
   first obs. used      1991-10-08  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54294  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:38:12  

Additional Information
 Earth MOID = 1.66736 au 
 Jupiter MOID = 1.63603 au 
 T_jup = 3.203 
[ 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 14.4   n/a MPO452835  
diameter diameter 7.548 km 0.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.55 h n/a LCDB (Rev. 2019-January); 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:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
geometric albedo albedo 0.045   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48820 (1997 WW33)          Discovered 1997-Nov-29 by LINEAR at Socorro
Reference: 20021120/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
1903-Feb-13 04:39 00:03 Jupiter 1.79038769124678 1.79038652260876 1.79038885988602 2.6395985685866 2.45383203650313 2416158.693798267 3.09502289814343 121.667364165296 13.0329245934899 82.1515087351771 1831049.22612729 T 21 CATAB v2.0f-lin.ifort 2019-Dec-04 03:38:24 2019-Dec-04 03:38
1913-Mar-06 07:36 00:03 Jupiter 1.69972864689359 1.69972805956215 1.69972923422473 1.81047762827216 1.51035528248111 2419832.816338758 2.78289131771382 56.7538892949143 28.7850952149232 86.914536890974 2310381.4356308 T 21 CATAB v2.0f-lin.ifort 2019-Dec-04 03:38:24 2019-Dec-04 03:38
1974-Sep-25 15:20 00:01 Jupiter 1.85801288997413 1.85801219611531 1.85801358383295 3.04233739128391 2.88860967332564 2442316.138907396 1.1415492287208 63.54501695904 18.6123258266767 79.6382163808162 2232897.03266427 T 21 CATAB v2.0f-lin.ifort 2019-Dec-04 03:38:24 2019-Dec-04 03:38
1984-Oct-15 18:54 < 00:01 Jupiter 1.67697123611162 1.67697087001962 1.67697160220343 1.82431835738965 1.52248354353358 2445989.287661282 0.871028685692599 58.6420999211709 27.8527569056036 84.4440224517801 2510747.73532111 T 21 CATAB v2.0f-lin.ifort 2019-Dec-04 03:38:24 2019-Dec-04 03:38
1994-Nov-16 20:09 < 00:01 Jupiter 1.95176188297307 1.95176137476354 1.95176239118249 2.50353066805793 2.32372739124869 2449673.339789555 0.56457088957265 47.3822961483689 9.45574497794862 84.0027145922076 2645308.70985212 T 21 CATAB v2.0f-lin.ifort 2019-Dec-04 03:38:24 2019-Dec-04 03:38
2046-May-04 21:49 < 00:01 Jupiter 1.93331988261489 1.93331933966991 1.93332042555988 3.48561562683299 3.35757055220638 2468470.408748502 0.808694310426184 52.4064774732361 19.3835181611468 83.5060714953117 2727575.81000059 T 21 CATAB v2.0f-lin.ifort 2019-Dec-04 03:38:24 2019-Dec-04 03:38
2056-May-28 20:15 00:01 Jupiter 1.66993851943435 1.66993813185195 1.66993890701645 1.90224284538176 1.61372001107037 2472147.343549151 1.1330105850787 60.8566392163038 25.5871927769731 -88.5403563316564 2313064.8003292 T 21 CATAB v2.0f-lin.ifort 2019-Dec-04 03:38:24 2019-Dec-04 03:38
2066-Jun-24 12:10 00:01 Jupiter 1.86823699562449 1.86823626354325 1.86823772770552 2.24366175264335 2.03156509790425 2475826.006974327 1.4036014940018 55.4732961939092 10.5973082853771 81.4796352535083 2132876.92618962 T 21 CATAB v2.0f-lin.ifort 2019-Dec-04 03:38:24 2019-Dec-04 03:38
2128-Jan-10 13:11 00:03 Jupiter 1.67990985271939 1.67990922765434 1.67991047778444 2.04790976312542 1.78480255194794 2498305.049004225 3.09344836421511 103.309546342992 18.7617164962642 -77.084163683597 1723378.91258422 T 21 CATAB v2.0f-lin.ifort 2019-Dec-04 03:38:24 2019-Dec-04 03:38
2138-Feb-02 10:03 00:03 Jupiter 1.78811522614394 1.7881139268739 1.78811652541308 2.02721537493614 1.77826059723564 2501980.918589912 3.3363554953425 61.8281298116889 14.3951128866619 82.0725142499953 1367543.95849746 T 21 CATAB v2.0f-lin.ifort 2019-Dec-04 03:38:24 2019-Dec-04 03:38
2199-Aug-24 14:58 00:05 Jupiter 1.71757601418597 1.71757462357925 1.71757740479631 2.29640071466229 2.07054494121853 2524464.123691942 5.03203330239497 182.720425709089 4.94902896078888 -87.2024041533688 1712091.28282019 T 21 CATAB v2.0f-lin.ifort 2019-Dec-04 03:38:24 2019-Dec-04 03:38

Alternate Designations
 1997 WW33 = 1999 FB48 = 2001 NB3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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