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102476 (1999 TC246)
Classification: Main-belt Asteroid          SPK-ID: 2102476
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .161928547584837 3.3304e-08  
a 2.426230601468858 9.7393e-09 au
q 2.03335460406712 8.2474e-08 au
i 5.633289058181607 3.046e-06 deg
node 133.0488949840447 4.9931e-05 deg
peri 320.1406080758875 5.2218e-05 deg
M 176.342944544961 1.5911e-05 deg
tp 2458524.335869266579
(2019-Feb-09.83586927)
5.9387e-05 TDB
period 1380.373270346342
3.78
8.3115e-06
2.276e-08
d
yr
n .2607990227959676 1.5703e-09 deg/d
Q 2.819106598870596 1.1316e-08 au
  Orbit Determination Parameters
   # obs. used (total)      836  
   data-arc span      7619 days (20.86 yr)  
   first obs. used      1999-10-08  
   last obs. used      2020-08-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50938  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:42:10  

Additional Information
 Earth MOID = 1.05352 au 
 Jupiter MOID = 2.35859 au 
 T_jup = 3.486 
[ 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 15.98   n/a E2021B55  
diameter diameter 3.046 km 0.874 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 14.9813 h n/a LCDB (Rev. 2020-October); 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.083   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

102476 (1999 TC246)          Discovered 1999-Oct-08 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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
1934-Aug-21 03:42 00:19 Psych 0.0459440157109125 0.0459364525305121 0.0459515790034306 1.81488430370426 1.81488415860162 2427670.654488840 19.0275631836522 392.205848914656 43.0584255153794 -16.897085494705 49116.6218552351 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 15:42:12 2021-Apr-13 15:42
1981-Jun-09 17:25 < 00:01 Iris 0.030016238041127 0.0300089546830525 0.0300235214700415 4.94588003162925 4.94587999290587 2444765.225436764 0.855777878538693 370.358263401861 44.2451008899995 -11.4798740084665 23423.9994406099 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 15:42:12 2021-Apr-13 15:42
2089-May-26 03:22 00:15 Psych 0.042303800216665 0.0422987450049584 0.0423088577422828 1.98618122227829 1.9861810782808 2484197.640043185 14.7863303708245 564.025207874306 56.6805655400811 64.0808757124778 100177.148634915 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 15:42:12 2021-Apr-13 15:42
2132-Aug-03 01:33 00:02 Iris 0.0448306065862369 0.0447950153218511 0.0448662007467018 4.8951289335302 4.89512890733424 2499971.564589008 2.1653899354136 1862.83396600617 41.8688802079307 17.7544222182573 48945.2139928991 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 15:42:12 2021-Apr-13 15:42
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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