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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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1469936400431634 3.8219e-08  
a 3.107581275017907 1.6737e-08 au
q 2.65078659167305 1.2173e-07 au
i .460038555233416 4.6745e-06 deg
node 13.241828710146 0.00052854 deg
peri 76.23839479599748 0.00052881 deg
M 304.5306207272334 1.5609e-05 deg
tp 2458908.806709352115
(2020-Feb-29.30670935)
8.7247e-05 TDB
period 2000.931267338943
5.48
1.6165e-05
4.426e-08
d
yr
n .17991622494798 1.4535e-09 deg/d
Q 3.564375958362764 1.9197e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1072  
   data-arc span      10284 days (28.16 yr)  
   first obs. used      1991-10-08  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5364  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:14:51  

Additional Information
 Earth MOID = 1.66736 au 
 Jupiter MOID = 1.63603 au 
 T_jup = 3.203 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456676.5 (2014-Jan-19.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1450004129434716 3.8502e-08  
q 2.657038413617971 1.2235e-07 au
tp 2456912.876533764810
(2014-Sep-12.37653376)
8.6437e-05 TDB
node 13.19285437759333 0.00052642 deg
peri 77.29372612352661 0.00052669 deg
i .462365058402832 4.6682e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1072  
   data-arc span      10284 days (28.16 yr)  
   first obs. used      1991-10-08  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5364  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:14:51  

Additional Information
 Jupiter MOID = 1.63603 au 
 T_jup = 3.203 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.482410556839166E-15 -4.678607906948936E-15 -2.294981393311628E-13 7.450994639536014E-15 -5.580140565696725E-14 -1.989919412844042E-16
q -4.678607906948936E-15 1.496962800610033E-14 6.887328576765383E-13 -2.810211731015476E-14 1.690619140502364E-13 6.972097743862681E-16
tp -2.294981393311628E-13 6.887328576765383E-13 7.471376511420274E-9 1.077742243231798E-11 1.478957910642421E-9 -1.147612818066564E-13
node 7.450994639536014E-15 -2.810211731015476E-14 1.077742243231798E-11 2.771192251358414E-7 -2.77108397272981E-7 1.522887509111627E-10
peri -5.580140565696725E-14 1.690619140502364E-13 1.478957910642421E-9 -2.77108397272981E-7 2.774049431784646E-7 -1.523027273062669E-10
i -1.989919412844042E-16 6.972097743862681E-16 -1.147612818066564E-13 1.522887509111627E-10 -1.523027273062669E-10 2.17923449511549E-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 14.4   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 1.79038766165975 1.79038652224653 1.7903888010742 2.63959836429241 2.45383181355683 2416158.693746027 3.03667122233404 119.861841766179 12.8814667114645 82.2887312408713 1853803.79842302 T 22 CATAB v2.0f-lin.ifort 2019-Dec-14 04:15:06 2019-Dec-14 04:15
1913-Mar-06 07:35 00:03 Jupiter 1.69972865369897 1.69972806927314 1.69972923812442 1.81047761771004 1.51035527114122 2419832.816299796 2.72919215012009 55.6097527763721 28.4915428868872 86.4550673999176 2314785.94141735 T 22 CATAB v2.0f-lin.ifort 2019-Dec-14 04:15:06 2019-Dec-14 04:15
1974-Sep-25 15:20 00:01 Jupiter 1.85801287349173 1.85801219397058 1.85801355301289 3.04233734058774 2.8886096185315 2442316.138894740 1.12263980412157 63.0369604774198 18.3816190116207 79.9915749826377 2267111.30331308 T 22 CATAB v2.0f-lin.ifort 2019-Dec-14 04:15:06 2019-Dec-14 04:15
1984-Oct-15 18:54 < 00:01 Jupiter 1.6769712315074 1.67697086747603 1.67697159553847 1.82431834355076 1.52248352604026 2445989.287664551 0.856048340969002 57.8253917402389 27.4870557378329 83.8720047592984 2537356.79261332 T 22 CATAB v2.0f-lin.ifort 2019-Dec-14 04:15:06 2019-Dec-14 04:15
1994-Nov-16 20:09 < 00:01 Jupiter 1.95176188934293 1.95176138468118 1.95176239400467 2.50353068171496 2.32372740657198 2449673.339782950 0.555258755007138 46.6187511890663 9.39147130130113 84.0641521349797 2657135.35602101 T 22 CATAB v2.0f-lin.ifort 2019-Dec-14 04:15:06 2019-Dec-14 04:15
2046-May-04 21:49 < 00:01 Jupiter 1.93331988439396 1.93331934171032 1.93332042707761 3.48561568092987 3.35757060848639 2468470.408766172 0.789786374013626 51.7521815283496 19.3795503318799 83.4276019631413 2728266.24252036 T 22 CATAB v2.0f-lin.ifort 2019-Dec-14 04:15:06 2019-Dec-14 04:15
2056-May-28 20:15 00:01 Jupiter 1.66993851411116 1.66993812937623 1.6699388988459 1.90224280267538 1.61371995972643 2472147.343556817 1.11018194808161 60.0752483405349 25.5170002136615 -88.8354312991122 2318875.7460548 T 22 CATAB v2.0f-lin.ifort 2019-Dec-14 04:15:06 2019-Dec-14 04:15
2066-Jun-24 12:10 00:01 Jupiter 1.86823698280545 1.86823625914999 1.8682377064607 2.24366172171022 2.0315650622104 2475826.006994532 1.37649492209429 54.4337266371938 10.4930301821484 81.4562258325488 2151420.02642109 T 22 CATAB v2.0f-lin.ifort 2019-Dec-14 04:15:06 2019-Dec-14 04:15
2128-Jan-10 13:11 00:03 Jupiter 1.67990985722271 1.67990923331349 1.67991048113193 2.047909794132 1.78480258828266 2498305.049051015 3.0311249492958 101.325150965994 18.7485080864063 -77.0699849209785 1724469.08230663 T 22 CATAB v2.0f-lin.ifort 2019-Dec-14 04:15:06 2019-Dec-14 04:15
2138-Feb-02 10:03 00:03 Jupiter 1.78811519727989 1.78811392242075 1.78811647213801 2.02721531543459 1.77826052510395 2501980.918637950 3.27048507178269 60.5492978393962 14.3016105855803 81.9572260033137 1391239.93098746 T 22 CATAB v2.0f-lin.ifort 2019-Dec-14 04:15:06 2019-Dec-14 04:15
2199-Aug-24 14:58 00:05 Jupiter 1.71757603786219 1.7175746627452 1.7175774129826 2.29640084893396 2.07054509341975 2524464.123770826 4.93100046052526 178.948476918178 4.88732919404946 -87.206050942453 1716741.50089098 T 22 CATAB v2.0f-lin.ifort 2019-Dec-14 04:15:06 2019-Dec-14 04:15

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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