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180912 (2005 LY2)
Classification: Main-belt Asteroid          SPK-ID: 2180912
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05120956624613573 4.5947e-08  
a 2.240733403531095 1.0841e-08 au
q 2.12598641786304 1.0621e-07 au
i 6.507291958878316 5.2568e-06 deg
node 192.6966334084119 4.2443e-05 deg
peri 24.20414528001977 6.7726e-05 deg
M 256.8253073318953 5.3522e-05 deg
tp 2459551.619049855021
(2021-Dec-03.11904986)
0.00018296 TDB
period 1225.134329737466
3.35
8.8911e-06
2.434e-08
d
yr
n .2938453288441802 2.1325e-09 deg/d
Q 2.35548038919915 1.1396e-08 au
  Orbit Determination Parameters
   # obs. used (total)      398  
   data-arc span      8337 days (22.83 yr)  
   first obs. used      1998-04-20  
   last obs. used      2021-02-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54348  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:28:27  

Additional Information
 Earth MOID = 1.1201 au 
 Jupiter MOID = 2.6052 au 
 T_jup = 3.624 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457330.5 (2015-Nov-04.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05099486856041429 4.5966e-08  
q 2.126190362081013 1.0617e-07 au
tp 2457103.352298761131
(2015-Mar-21.85229876)
0.00017887 TDB
node 192.7309304167554 4.2418e-05 deg
peri 24.68648187724672 6.7895e-05 deg
i 6.509011197000721 5.2588e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      398  
   data-arc span      8337 days (22.83 yr)  
   first obs. used      1998-04-20  
   last obs. used      2021-02-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54348  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:28:27  

Additional Information
 Jupiter MOID = 2.6052 au 
 T_jup = 3.624 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.112841866163119E-15 -4.859048856624771E-15 -1.499882294454613E-12 3.416655127097777E-16 -4.514914427306769E-13 -2.232918003168586E-15
q -4.859048856624771E-15 1.127271956532256E-14 3.781173475936013E-12 -2.073410732100927E-16 1.137781721596724E-12 5.069317454661578E-15
tp -1.499882294454613E-12 3.781173475936013E-12 3.199294958322074E-8 -4.771672765826254E-13 9.502245805422986E-9 4.445940598453389E-12
node 3.416655127097777E-16 -2.073410732100927E-16 -4.771672765826254E-13 1.79926680893955E-9 -1.786792695996473E-9 -2.082303057970284E-11
peri -4.514914427306769E-13 1.137781721596724E-12 9.502245805422986E-9 -1.786792695996473E-9 4.609739439932137E-9 2.20726435901E-11
i -2.232918003168586E-15 5.069317454661578E-15 4.445940598453389E-12 -2.082303057970284E-11 2.20726435901E-11 2.765464252641226E-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 17.01   n/a MPCxxxxx  

180912 (2005 LY2)          Discovered 2005-Jun-02 by CSS at Catalina
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

[ 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
2185-Apr-22 16:28 00:02 Hebe 0.0405284028730965 0.0405119030295787 0.0405449476276118 6.52919731897413 6.52919729548114 2519227.186437619 2.12087781388451 2284.229192571 47.5815402615578 -68.8935408597192 118848.077980499 T 22 CATAB v2.0f-lin.ifort 2021-Apr-13 21:28:28 2021-Apr-13 21:28

Alternate Designations
 2005 LY2 = 1999 TY59 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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