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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1130019499168489 4.8008e-08  
a 3.045937758803414 3.4507e-08 au
q 2.701740852733272 1.4416e-07 au
i 10.16739261297287 5.3685e-06 deg
node 79.1025739710668 3.6475e-05 deg
peri 226.5327367365573 4.657e-05 deg
M 149.4056303415788 2.9693e-05 deg
tp 2458194.668152581757
(2018-Mar-17.16815258)
0.00015969 TDB
period 1941.690312522542
5.32
3.2996e-05
9.034e-08
d
yr
n .1854054674312645 3.1506e-09 deg/d
Q 3.390134664873556 3.8406e-08 au
  Orbit Determination Parameters
   # obs. used (total)      275  
   data-arc span      6829 days (18.70 yr)  
   first obs. used      2001-05-18  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62669  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:21:41  

Additional Information
 Earth MOID = 1.69829 au 
 Jupiter MOID = 1.8305 au 
 T_jup = 3.205 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457512.5 (2016-May-04.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1136454483431359 4.8182e-08  
q 2.70215835137265 1.4456e-07 au
tp 2458189.251078112712
(2018-Mar-11.75107811)
0.00015876 TDB
node 79.23062804440261 3.6534e-05 deg
peri 225.2812273908532 4.6443e-05 deg
i 10.15752591494979 5.361e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      275  
   data-arc span      6829 days (18.70 yr)  
   first obs. used      2001-05-18  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62669  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:21:41  

Additional Information
 Jupiter MOID = 1.8305 au 
 T_jup = 3.205 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.321538403888001E-15 -6.811585561015499E-15 1.786491952880709E-12 -5.843287959907591E-15 2.57627755160318E-13 -1.260973669338342E-15
q -6.811585561015499E-15 2.089683455869645E-14 -5.309387182872336E-12 2.459889862666433E-14 -8.374671792125147E-13 3.470039634582061E-15
tp 1.786491952880709E-12 -5.309387182872336E-12 2.520452364377339E-8 4.542006073705532E-11 4.603878971463415E-9 -1.980843999865806E-11
node -5.843287959907591E-15 2.459889862666433E-14 4.542006073705532E-11 1.334751367925773E-9 -1.305459855317763E-9 -4.889582119132801E-11
peri 2.57627755160318E-13 -8.374671792125147E-13 4.603878971463415E-9 -1.305459855317763E-9 2.156932134772148E-9 4.443803087353682E-11
i -1.260973669338342E-15 3.470039634582061E-15 -1.980843999865806E-11 -4.889582119132801E-11 4.443803087353682E-11 2.874029155227299E-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

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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 1.87037604488094 1.87037488386574 1.87037720589688 3.57624853471771 3.44729303705629 2425814.402379271 4.40294019392375 118.023922246686 39.2709297258731 -72.3275383016701 1814958.73185134 T 16 CATAB v2.0f-lin.ifort 2020-Feb-25 10:21:42 2020-Feb-25 10:21
1977-Aug-18 22:10 00:02 Jupiter 1.82291109809782 1.82291062435977 1.82291157183618 3.37883407676645 3.23839654403991 2443374.423698449 1.94099140971269 116.705759302991 17.2908644167832 -84.4809716628469 2535596.33101144 T 16 CATAB v2.0f-lin.ifort 2020-Feb-25 10:21:42 2020-Feb-25 10:21
2025-Sep-14 17:47 < 00:01 Jupiter 1.84403985115738 1.84403938620875 1.84404031610622 3.13120699057343 2.98090549212393 2460933.240964241 0.574076376805423 82.2187008629684 14.3905713072755 -81.2449245834547 2502789.03053371 T 16 CATAB v2.0f-lin.ifort 2020-Feb-25 10:21:42 2020-Feb-25 10:21
2073-Oct-17 10:55 00:03 Jupiter 1.92486825893748 1.92486731699026 1.9248692008905 2.85203599900248 2.6933298565807 2478497.955097054 3.04478858519755 196.382689926111 11.7452715130567 -74.0845144367807 2552460.74070102 T 16 CATAB v2.0f-lin.ifort 2020-Feb-25 10:21:42 2020-Feb-25 10:21
2083-Apr-06 18:17 00:03 Jupiter 1.9742505633927 1.97424904629319 1.97425208049871 3.91805094554049 3.80697429561594 2481956.261785768 3.40394509793209 218.22065243832 29.707567167499 -73.2442918639467 2217626.81287334 T 16 CATAB v2.0f-lin.ifort 2020-Feb-25 10:21:42 2020-Feb-25 10:21
2131-May-06 03:08 00:06 Jupiter 1.87374737050613 1.87374576095611 1.87374898005595 3.64731862390486 3.52119844130753 2499516.630456506 5.78197001714294 97.6453869790893 62.9895469031522 -67.9293982732518 1160465.34125178 T 16 CATAB v2.0f-lin.ifort 2020-Feb-25 10:21:42 2020-Feb-25 10:21
2179-Jun-01 09:47 00:08 Jupiter 1.83387400303868 1.83387335069666 1.83387465538956 3.36499892399753 3.22482024619018 2517074.907462047 8.18161003824233 342.936067624664 19.5591086730684 -89.8279493971765 2291530.70647608 T 16 CATAB v2.0f-lin.ifort 2020-Feb-25 10:21:42 2020-Feb-25 10:21

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