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JPL Small-Body Database Browser
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249299 (2008 TB177)
Classification: Main-belt Asteroid          SPK-ID: 2249299
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1130019497926978 4.8468e-08  
a 3.045937759088388 3.4902e-08 au
q 2.701740853364199 1.463e-07 au
i 10.16739220849042 5.3878e-06 deg
node 79.10258362229359 3.805e-05 deg
peri 226.5327269470547 4.8295e-05 deg
M 149.4056305728274 3.021e-05 deg
tp 2458194.668151221409
(2018-Mar-17.16815122)
0.00016288 TDB
period 1941.690312795035
5.32
3.3373e-05
9.137e-08
d
yr
n .1854054674052451 3.1867e-09 deg/d
Q 3.390134664812576 3.8846e-08 au
  Orbit Determination Parameters
   # obs. used (total)      271  
   data-arc span      6806 days (18.63 yr)  
   first obs. used      2001-05-18  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62791  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 03:15:41  

Additional Information
 Earth MOID = 1.69829 au 
 Jupiter MOID = 1.8305 au 
 T_jup = 3.205 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457454.5 (2016-Mar-07.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1138878727012492 4.8671e-08  
q 2.701205285981567 1.469e-07 au
tp 2458188.753921638318
(2018-Mar-11.25392164)
0.00016149 TDB
node 79.26962271935773 3.8111e-05 deg
peri 225.1951679820475 4.8117e-05 deg
i 10.1580546743838 5.3791e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      271  
   data-arc span      6806 days (18.63 yr)  
   first obs. used      2001-05-18  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62791  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 03:15:41  

Additional Information
 Jupiter MOID = 1.8305 au 
 T_jup = 3.205 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.368863959431156E-15 -6.993215636128453E-15 1.988130215731906E-12 -5.265763222524417E-15 3.007269892472965E-13 -1.696817949179628E-15
q -6.993215636128453E-15 2.157926619119997E-14 -6.042456866547842E-12 2.661781742237267E-14 -9.968382705665961E-13 4.95205057646721E-15
tp 1.988130215731906E-12 -6.042456866547842E-12 2.607783894800895E-8 3.78839644514727E-11 4.801152121321024E-9 -1.9796709388992E-11
node -5.265763222524417E-15 2.661781742237267E-14 3.78839644514727E-11 1.452470355543884E-9 -1.422987429795643E-9 -5.364494451241863E-11
peri 3.007269892472965E-13 -9.968382705665961E-13 4.801152121321024E-9 -1.422987429795643E-9 2.315229249362629E-9 4.905227951685715E-11
i -1.696817949179628E-15 4.95205057646721E-15 -1.9796709388992E-11 -5.364494451241863E-11 4.905227951685715E-11 2.893503689029622E-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 15.3   n/a MPO413152  
diameter diameter 4.513 km 2.094 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.066   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249299 (2008 TB177)          Discovered 2008-Oct-07 by CSS at Catalina
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ 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
1929-Jul-21 21:39 00:04 Jupiter 1.87037605556215 1.87037489266489 1.87037721846015 3.57624837821308 3.44729287544738 2425814.402370215 4.45085145745524 118.050765135623 39.5597423244426 -72.3689983560165 1809038.60281267 T 15 CATAB v2.0f-lin.ifort 2020-Jan-30 03:15:55 2020-Jan-30 03:16
1977-Aug-18 22:10 00:02 Jupiter 1.82291109399832 1.82291061597235 1.8229115720246 3.3788339430834 3.23839640423683 2443374.423710618 1.95701744772346 118.70040301147 17.4603570085717 -84.5043866501859 2516141.75402106 T 15 CATAB v2.0f-lin.ifort 2020-Jan-30 03:15:55 2020-Jan-30 03:16
2025-Sep-14 17:47 < 00:01 Jupiter 1.84403983273851 1.84403936367354 1.84404030180374 3.13120699670184 2.98090549702223 2460933.240968582 0.5932074155125 85.4672042544074 14.4146295251903 -81.3318807887539 2497944.32988517 T 15 CATAB v2.0f-lin.ifort 2020-Jan-30 03:15:55 2020-Jan-30 03:16
2073-Oct-17 10:55 00:03 Jupiter 1.9248682332532 1.92486726547143 1.9248692010411 2.85203607683405 2.69332993681847 2478497.955108108 3.09628225197538 200.588604206828 11.8407521575265 -73.9969834143805 2542813.66967754 T 15 CATAB v2.0f-lin.ifort 2020-Jan-30 03:15:55 2020-Jan-30 03:16
2083-Apr-06 18:17 00:03 Jupiter 1.97425057373255 1.97424901264437 1.97425213482758 3.9180507677522 3.80697411323054 2481956.261787558 3.45848342367159 222.897801216965 29.9845027244349 -73.0537390231475 2184093.60719304 T 15 CATAB v2.0f-lin.ifort 2020-Jan-30 03:15:55 2020-Jan-30 03:16
2131-May-06 03:08 00:06 Jupiter 1.8737473731683 1.87374572530804 1.87374902102834 3.64731848821809 3.52119830094321 2499516.630462316 5.86871125260741 99.0804681165772 63.9998833918302 -66.8050154378977 1138102.16803721 T 15 CATAB v2.0f-lin.ifort 2020-Jan-30 03:15:55 2020-Jan-30 03:16
2179-Jun-01 09:47 00:08 Jupiter 1.83387399376696 1.83387332907488 1.83387465846832 3.36499885858992 3.22482017721527 2517074.907474909 8.30002508856494 347.630938959814 19.7173868479392 -89.8820535750904 2250915.92621874 T 15 CATAB v2.0f-lin.ifort 2020-Jan-30 03:15:55 2020-Jan-30 03:16

Alternate Designations
 2008 TB177 = 2006 HN59 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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