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181915 (1999 TY51)
Classification: Main-belt Asteroid          SPK-ID: 2181915
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 .05436065026861979 3.5368e-08  
a 3.077671277982686 2.5379e-08 au
q 2.910367065998493 1.0341e-07 au
i 8.40078880294538 4.6719e-06 deg
node 220.0763367687349 2.7985e-05 deg
peri 54.09161345023071 7.927e-05 deg
M 75.76442759924586 6.9088e-05 deg
tp 2458785.455541314339
(2019-Oct-28.95554131)
0.00038151 TDB
period 1972.112901283573
5.40
2.4394e-05
6.679e-08
d
yr
n .1825453298164064 2.258e-09 deg/d
Q 3.244975489966879 2.6759e-08 au
  Orbit Determination Parameters
   # obs. used (total)      555  
   data-arc span      7724 days (21.15 yr)  
   first obs. used      1999-10-04  
   last obs. used      2020-11-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5217  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:32:35  

Additional Information
 Earth MOID = 1.90263 au 
 Jupiter MOID = 1.80628 au 
 T_jup = 3.210 
[ 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 15.22   n/a MPCxxxxx  
diameter diameter 4.184 km 1.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.092   0.075 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

181915 (1999 TY51)          Discovered 1999-Oct-04 by Spacewatch at Kitt Peak
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

[ 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
1930-Jun-07 11:14 00:03 Jupiter 1.95539646917434 1.95539510452728 1.95539783382229 3.5497373500189 3.42553525065368 2426134.967761140 3.25352485318576 104.846981193266 36.8751149835988 54.4943822616051 4143135.52132809 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 21:32:36 2021-Apr-13 21:32
1940-Apr-17 16:41 00:03 Jupiter 1.86173480474862 1.86173424886405 1.86173536063382 3.77477512356132 3.65225944058923 2429737.194865569 2.91849099277764 207.093902647079 23.0448842321337 -86.7317285161062 2800532.61505446 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 21:32:36 2021-Apr-13 21:32
1999-Dec-18 12:47 < 00:01 Jupiter 1.83209336072132 1.83209268658188 1.83209403486076 3.79404615927436 3.67016843146516 2451531.032380045 0.586489346052106 58.3277420333216 27.3953453602586 79.1976833031614 2686891.05908907 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 21:32:36 2021-Apr-13 21:32
2059-Aug-17 06:11 00:02 Jupiter 1.82316238269445 1.82316170397332 1.82316306141756 3.77562912045609 3.65050623941441 2473322.757727206 1.77011065617612 137.415723050473 18.9814905042002 -80.8877846833343 2790898.74870502 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 21:32:36 2021-Apr-13 21:32
2119-Apr-16 11:52 00:04 Jupiter 1.83595895712038 1.83595852465324 1.83595938958751 3.71480326442151 3.58846209298408 2495113.994414544 4.09607773345517 276.694003495424 18.51721820838 88.5614354492063 3033017.13377132 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 21:32:36 2021-Apr-13 21:32
2178-Dec-14 19:50 00:06 Jupiter 1.86897129153095 1.86897020107439 1.86897238200898 3.61398370970813 3.4863266056401 2516906.326619762 6.49138369410536 353.22632235409 19.070247117574 80.1859736984407 3223730.8138169 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 21:32:36 2021-Apr-13 21:32
2188-Oct-26 04:49 00:07 Jupiter 1.95766613805929 1.95766337592646 1.95766890022171 3.93702134254653 3.82554544710746 2520509.700589865 6.82183915546129 415.418360265072 22.1412490304251 -71.7367898278245 2934762.88864834 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 21:32:36 2021-Apr-13 21:32

Alternate Designations
 1999 TY51 = 2004 RU177 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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