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20650 (1999 TG173)
Classification: Main-belt Asteroid          SPK-ID: 2020650
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1606394358855445 4.2365e-08  
a 2.675350264582972 1.0491e-08 au
q 2.245583507284121 1.1227e-07 au
i 4.487634562548873 4.3232e-06 deg
node 160.6179695468369 5.1522e-05 deg
peri 39.67505004945032 5.283e-05 deg
M 102.1688726310483 1.1016e-05 deg
tp 2458546.886990935754
(2019-Mar-04.38699094)
4.8714e-05 TDB
period 1598.340855270462
4.38
9.4014e-06
2.574e-08
d
yr
n .2252335594206424 1.3248e-09 deg/d
Q 3.105117021881823 1.2176e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1646  
   data-arc span      16577 days (45.39 yr)  
   first obs. used      1975-03-14  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49549  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 01:37:21  

Additional Information
 Earth MOID = 1.24551 au 
 Jupiter MOID = 1.8535 au 
 T_jup = 3.356 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456484.5 (2013-Jul-11.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1603686164188098 4.2568e-08  
q 2.247709241473252 1.1291e-07 au
tp 2456946.195847403337
(2014-Oct-15.69584740)
4.9016e-05 TDB
node 160.7773008544863 5.1657e-05 deg
peri 39.16148166503709 5.2951e-05 deg
i 4.480612478693071 4.3186e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1646  
   data-arc span      16577 days (45.39 yr)  
   first obs. used      1975-03-14  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49549  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 01:37:21  

Additional Information
 Jupiter MOID = 1.8535 au 
 T_jup = 3.356 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.812009899564806E-15 -4.792595276853591E-15 -1.250223429955405E-13 9.253930608962357E-15 -5.53816013457787E-14 -2.349211734038731E-15
q -4.792595276853591E-15 1.274817805921558E-14 2.937608875109169E-13 -2.469646554070531E-14 1.338158320029435E-13 6.099599841007304E-15
tp -1.250223429955405E-13 2.937608875109169E-13 2.402547441692268E-9 3.325931541463325E-12 5.871249730004934E-10 -7.260607278144362E-14
node 9.253930608962357E-15 -2.469646554070531E-14 3.325931541463325E-12 2.668420883522356E-9 -2.659078813864094E-9 5.029445495302746E-11
peri -5.53816013457787E-14 1.338158320029435E-13 5.871249730004934E-10 -2.659078813864094E-9 2.803783320034E-9 -5.016852853397965E-11
i -2.349211734038731E-15 6.099599841007304E-15 -7.260607278144362E-14 5.029445495302746E-11 -5.016852853397965E-11 1.864994078756573E-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 13.9   n/a MPO474037  
diameter diameter 4.516 km 0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.262   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20650 (1999 TG173)          Discovered 1999-Oct-10 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ 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
1916-Apr-24 16:44 00:02 Jupiter 1.84474885584727 1.84474850660206 1.84474920509248 2.02087054184875 1.779216444589 2420978.196877253 1.59686976304204 116.849561487562 27.5046691431312 86.1729910097935 2151459.60359666 T 23 CATAB v2.0f-lin.ifort 2020-Aug-25 01:37:34 2020-Aug-25 01:37
1999-Jun-15 06:51 < 00:01 Jupiter 1.84270775200033 1.84270739623973 1.84270810776072 1.99698865244206 1.75175338196224 2451344.785414054 0.270304382519379 43.9371937995868 27.0972735004329 70.2715223283032 2117865.38053317 T 23 CATAB v2.0f-lin.ifort 2020-Aug-25 01:37:34 2020-Aug-25 01:37
2082-Aug-05 22:36 00:01 Jupiter 1.84548017421423 1.84547983087195 1.8454805175563 1.9822263150392 1.73530356886498 2481712.441616274 1.15371458669036 86.3119257280121 28.3390648495601 81.6029328109838 2153470.68822057 T 23 CATAB v2.0f-lin.ifort 2020-Aug-25 01:37:34 2020-Aug-25 01:37
2117-Feb-02 13:17 00:02 Jupiter 1.99499984369509 1.99499881085376 1.99500087653745 2.58326485376481 2.41331967607073 2494311.053325838 1.71340034676722 103.102172467039 13.8062113331196 -76.3686359953893 2478013.03891798 T 23 CATAB v2.0f-lin.ifort 2020-Aug-25 01:37:34 2020-Aug-25 01:37
2165-Sep-26 21:16 00:03 Jupiter 1.85191969080446 1.8519193185608 1.85192006304896 1.97353537150842 1.72629402351362 2512079.386406448 2.50899941149714 170.256073507127 28.1399649493728 83.7899326385453 2174974.47160152 T 23 CATAB v2.0f-lin.ifort 2020-Aug-25 01:37:34 2020-Aug-25 01:37
2200-Mar-28 13:57 00:03 Jupiter 1.96828751998342 1.96828591005051 1.96828912992069 2.50114848703882 2.32272991462209 2524680.081323782 3.08214812212018 183.753084495918 13.8057918039325 -78.5554195832618 2466528.86745487 T 23 CATAB v2.0f-lin.ifort 2020-Aug-25 01:37:34 2020-Aug-25 01:37

Alternate Designations
 1999 TG173 = 1975 EH3 = 1998 OO11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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