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152812 (1999 TC244)
Classification: Main-belt Asteroid          SPK-ID: 2152812
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1429155042293538 5.8494e-08  
a 3.052300702518421 2.3862e-08 au
q 2.61607960855839 1.8567e-07 au
i 15.56301769704505 6.1418e-06 deg
node 11.71466864173478 1.3768e-05 deg
peri 348.7351936440999 2.0073e-05 deg
M 358.3924534721817 1.3165e-05 deg
tp 2459209.197620468987
(2020-Dec-25.69762047)
7.1247e-05 TDB
period 1947.777756134164
5.33
2.2841e-05
6.254e-08
d
yr
n .1848260146036923 2.1674e-09 deg/d
Q 3.488521796478452 2.7273e-08 au
  Orbit Determination Parameters
   # obs. used (total)      542  
   data-arc span      7780 days (21.30 yr)  
   first obs. used      1999-08-22  
   last obs. used      2020-12-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5228  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:28:46  

Additional Information
 Earth MOID = 1.61401 au 
 Jupiter MOID = 1.97344 au 
 T_jup = 3.165 
[ 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 15.00   n/a E2021B55  
diameter diameter 8.018 km 1.231 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.035   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

152812 (1999 TC244)          Discovered 1999-Oct-07 by CSS at Catalina
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

[ 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
1980-Dec-14 08:48 00:01 Jupiter 1.96631341663006 1.96631286108036 1.96631397239962 4.32307926605139 4.22226014927757 2444587.866883572 1.17324288693909 1712.99346805907 18.2542884638186 89.360657354962 2895419.74643579 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 19:28:48 2021-Apr-13 19:28
2087-Aug-04 07:30 00:02 Jupiter 1.97353759505345 1.97353700729699 1.97353818300769 4.32137580375188 4.22088958961741 2483536.812630334 2.37016838394748 1640.53656276533 20.7803527867772 89.309602597974 2818839.49444453 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 19:28:48 2021-Apr-13 19:28
2194-Mar-25 18:41 00:06 Jupiter 1.98525414512988 1.98525302991359 1.98525526051285 4.32768417192431 4.22794706200163 2522486.278580546 5.89586566576613 1270.31922011012 39.5931009593435 88.1212016034009 2821287.37062936 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 19:28:48 2021-Apr-13 19:28

Alternate Designations
 1999 TC244 = 1999 TL228 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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