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91627 (1999 TW55)
Classification: Main-belt Asteroid          SPK-ID: 2091627
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1648389111520586 4.2195e-08  
a 3.05264678442181 1.9951e-08 au
q 2.549451812345886 1.3019e-07 au
i 3.984673607124468 4.9047e-06 deg
node 22.00535979701564 6.526e-05 deg
peri 110.0264354259559 6.6749e-05 deg
M 219.59079460295 1.5039e-05 deg
tp 2459760.312338106619
(2022-Jun-29.81233811)
8.4835e-05 TDB
period 1948.109035621177
5.33
1.9099e-05
5.229e-08
d
yr
n .1847945846035306 1.8117e-09 deg/d
Q 3.555841756497735 2.324e-08 au
  Orbit Determination Parameters
   # obs. used (total)      778  
   data-arc span      7258 days (19.87 yr)  
   first obs. used      1999-10-06  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53845  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:58:16  

Additional Information
 Earth MOID = 1.56732 au 
 Jupiter MOID = 1.50136 au 
 T_jup = 3.212 
[ 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 14.5   n/a MPO449563  
diameter diameter 7.942 km 1.129 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.049   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

91627 (1999 TW55)          Discovered 1999-Oct-06 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ 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
1902-Jan-05 05:40 00:04 Jupiter 1.63197844437401 1.63197675101617 1.63198013776413 1.34105256262614 0.872003713476164 2415754.735967170 3.82246358154169 685.445643532775 165.021874937053 51.6534770891677 2030683.6514655 T 18 CATAB v2.0f-lin.ifort 2019-Sep-24 02:58:19 2019-Sep-24 02:58
1950-Oct-19 19:34 00:02 Jupiter 1.53037401394409 1.53037330755899 1.53037472033511 1.54104888056793 1.12600323039298 2433574.315381464 2.09196917138039 297.189447639867 150.470900996993 53.3436222104624 1315652.85397068 T 18 CATAB v2.0f-lin.ifort 2019-Sep-24 02:58:19 2019-Sep-24 02:58
1960-Mar-06 14:17 00:02 Jupiter 1.99476985696256 1.99476865575954 1.99477105816501 2.56045524687513 2.3888674562122 2437000.095209475 1.71409593018242 53.0510776766512 24.4555813787212 71.1953575107812 1170291.95262046 T 18 CATAB v2.0f-lin.ifort 2019-Sep-24 02:58:19 2019-Sep-24 02:58
1999-Aug-09 05:24 < 00:01 Jupiter 1.84766869719874 1.84766804751255 1.84766934688484 2.91370998802938 2.75188126367643 2451399.724974739 0.539432391509604 61.3083609283551 18.5832288782859 -81.1838620753913 2033421.62136262 T 18 CATAB v2.0f-lin.ifort 2019-Sep-24 02:58:19 2019-Sep-24 02:58
2008-Dec-27 02:19 < 00:01 Jupiter 1.60162080208101 1.60162039293901 1.60162121122493 1.3301201978698 0.843512332019467 2454827.596583903 0.324132687655563 320.309931019551 149.054605089982 31.000524420293 2173265.10581077 T 18 CATAB v2.0f-lin.ifort 2019-Sep-24 02:58:19 2019-Sep-24 02:58
2057-Oct-07 03:19 00:01 Jupiter 1.54321609220534 1.54321555389227 1.5432166305221 1.64203053126579 1.26432887593719 2472643.638114132 1.41732213942449 205.505404438667 114.754187388248 73.9285911060843 1460153.62895242 T 18 CATAB v2.0f-lin.ifort 2019-Sep-24 02:58:19 2019-Sep-24 02:58
2067-Feb-21 06:43 00:02 Jupiter 1.96006570010147 1.96006449677018 1.96006690343199 2.42832904858403 2.24332392882739 2476067.779710174 1.70761065438405 51.4077911008209 23.4983826172165 77.0811627892741 1169068.24527088 T 18 CATAB v2.0f-lin.ifort 2019-Sep-24 02:58:19 2019-Sep-24 02:58
2106-Jul-26 23:38 00:03 Jupiter 1.88880143533033 1.88879961256051 1.88880325809909 3.06460968947134 2.91460866225876 2490467.485057443 2.92306117403574 63.1417645414033 55.1168807488491 16.3509071778495 824319.368610707 T 18 CATAB v2.0f-lin.ifort 2019-Sep-24 02:58:19 2019-Sep-24 02:58
2115-Dec-16 01:11 00:03 Jupiter 1.57778648286846 1.57778513653005 1.57778782925323 1.35113619915724 0.867112702898184 2493896.548999830 3.36304012601697 636.507856248127 231.511596049687 68.4399779852315 2123875.45597393 T 18 CATAB v2.0f-lin.ifort 2019-Sep-24 02:58:19 2019-Sep-24 02:58
2164-Sep-22 05:28 00:05 Jupiter 1.5571205831007 1.55711903194384 1.5571221342565 1.72699332712948 1.376434365316 2511709.727441596 4.91695844920533 225.912846805379 119.785963926579 59.3644140700965 772431.557852776 T 18 CATAB v2.0f-lin.ifort 2019-Sep-24 02:58:19 2019-Sep-24 02:58
2174-Feb-06 08:12 00:05 Jupiter 1.92287139971871 1.92286802611286 1.92287477331767 2.30079197927903 2.10062994393873 2515133.841363531 5.16147512944863 56.1450801411692 48.881123495652 -51.2147240825067 423854.340014 T 18 CATAB v2.0f-lin.ifort 2019-Sep-24 02:58:19 2019-Sep-24 02:58

Alternate Designations
 1999 TW55 = 2000 YW116 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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