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JPL Small-Body Database Browser
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11911 Angel (1992 LF)
Classification: Main-belt Asteroid          SPK-ID: 2011911
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1575603230806661 4.4717e-08  
a 3.19484356591144 2.1619e-08 au
q 2.691462981474246 1.4549e-07 au
i 20.15940008102083 5.0719e-06 deg
node 152.2810036481753 1.2158e-05 deg
peri 221.4271684197 1.8169e-05 deg
M 222.8708570589698 1.6001e-05 deg
tp 2459795.011311650196
(2022-Aug-03.51131165)
9.682e-05 TDB
period 2085.800771883113
5.71
2.1172e-05
5.797e-08
d
yr
n .1725955828825315 1.7519e-09 deg/d
Q 3.698224150348635 2.5025e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1983  
   data-arc span      18141 days (49.67 yr)  
   first obs. used      1970-08-28  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43859  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:38:28  

Additional Information
 Earth MOID = 1.71908 au 
 Jupiter MOID = 1.8299 au 
 T_jup = 3.081 
[ 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 11.9   n/a MPO473928  
diameter diameter 27.233 km 0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.054   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

11911 Angel           Discovered 1992 June 4 by C. S. Shoemaker and D. H. Levy at Palomar.
Founder and director of Steward Observatory's mirror lab at the University of Arizona, Tucson, Roger Angel (b. 1941) has spearheaded the development of telescope mirrors as large as eight meters in diameter by a process called spin-casting. His work and ideas have resulted in an enormous increase in telescope light-gathering power.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20001111/MPCPages.arcLast Updated: 2013-03-29

[ 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
1921-Aug-15 18:13 00:03 Jupiter 1.91949742915992 1.91949633498611 1.91949852335403 4.99377615991364 4.90461560198702 2422917.259189754 2.67353400641074 354.136401048008 23.5591480834409 -81.7351511517454 3627021.78737572 T 33 CATAB v2.0f-lin.ifort 2020-May-20 03:38:39 2020-May-20 03:38
1932-Dec-28 08:35 00:02 Jupiter 1.86793962679933 1.86793914778751 1.86794010581284 5.19549611657532 5.10747239162129 2427069.857823482 2.11879698797926 296.354441517697 22.1183177576809 -88.4607082096687 3881350.09240316 T 33 CATAB v2.0f-lin.ifort 2020-May-20 03:38:39 2020-May-20 03:38
1944-May-06 16:23 00:02 Jupiter 1.90904003099135 1.90903935887231 1.90904070311517 5.2935906910891 5.20909990635472 2431217.182588689 1.76503672522287 221.865335987201 23.6804207097682 84.0379482785334 4094566.36034332 T 33 CATAB v2.0f-lin.ifort 2020-May-20 03:38:39 2020-May-20 03:38
2111-Jul-01 09:11 00:03 Jupiter 1.95638380917163 1.95638263632844 1.95638498203673 4.89522177766752 4.80596400006385 2492267.882823834 2.9990031032813 371.728661536167 25.377802631137 -81.3869135682056 3423835.35460995 T 33 CATAB v2.0f-lin.ifort 2020-May-20 03:38:39 2020-May-20 03:38
2122-Nov-09 06:53 00:03 Jupiter 1.90508789288639 1.90508735114407 1.90508843464128 5.19928851385375 5.11305970954774 2496416.786854586 3.42425712612745 465.982977639356 22.3797203882981 -88.0134257382157 3924921.87762004 T 33 CATAB v2.0f-lin.ifort 2020-May-20 03:38:39 2020-May-20 03:38
2134-Mar-17 08:55 00:04 Jupiter 1.93469987694538 1.93469883245324 1.93470092148206 5.38732267072954 5.30543441017318 2500562.871534291 4.10476886578999 520.045535039383 22.1482655658331 84.9321288781469 4376107.50539523 T 33 CATAB v2.0f-lin.ifort 2020-May-20 03:38:39 2020-May-20 03:38

Alternate Designations
 1992 LF = 1970 QC = 1993 PF9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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