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1027 Aesculapia (A923 YO11)
Classification: Main-belt Asteroid          SPK-ID: 2001027
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1293375581629867 3.7609e-08  
a 3.153914717860101 1.362e-08 au
q 2.74599508959777 1.2075e-07 au
i 1.252909371507742 4.0889e-06 deg
node 29.34659724485043 0.0001672 deg
peri 132.0743694547368 0.00016778 deg
M 332.9416365464653 1.4828e-05 deg
tp 2459154.270267831397
(2020-Oct-31.77026783)
8.4582e-05 TDB
period 2045.847913690862
5.60
1.3253e-05
3.628e-08
d
yr
n .1759661593566519 1.1399e-09 deg/d
Q 3.561834346122431 1.5382e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3157  
   data-arc span      41216 days (112.84 yr)  
   first obs. used      1908-01-13  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4579  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:57:49  

Additional Information
 Earth MOID = 1.75454 au 
 Jupiter MOID = 1.41685 au 
 T_jup = 3.193 
[ 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 10.9   n/a MPO452172  
diameter diameter 31.225 km 0.164 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 13.529 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Hess, K.; Bruner, M.; Ditteon, R. (2017) Minor Planet Bull. 44, 3-5.]
geometric albedo albedo 0.129   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1027 Aesculapia (A923 YO11)          Discovered 1923-Nov-11 by Van Biesbroeck, G. at Williams Bay
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ 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
1929-May-29 07:21 00:02 Jupiter 1.83895095433922 1.83894973994672 1.83895216873129 2.94292191319641 2.78201141829152 2425760.806522262 1.89419395539405 49.2341154657567 30.2524718358715 48.6188740238163 1371125.77373433 T 40 CATAB v2.0f-lin.ifort 2020-Dec-18 01:57:58 2020-Dec-18 01:57
1939-Dec-17 12:32 00:02 Jupiter 1.49742497794853 1.49742435717851 1.49742559871778 1.57656346302964 1.16372114682541 2429615.022022168 1.61954536592675 122.280882202437 97.1999341311182 48.5853082695009 1573943.89639434 T 40 CATAB v2.0f-lin.ifort 2020-Dec-18 01:57:58 2020-Dec-18 01:57
1950-Jul-19 12:35 00:01 Jupiter 1.50705792483887 1.50705737486547 1.50705847481603 1.5277671551795 1.09999918810176 2433482.024403438 1.30427516296603 198.682487760638 72.9930540596212 59.4830775356707 2806969.52444115 T 40 CATAB v2.0f-lin.ifort 2020-Dec-18 01:57:58 2020-Dec-18 01:57
1961-Feb-12 09:08 00:01 Jupiter 1.86148999103227 1.86148928790911 1.86149069415522 2.67134982603878 2.49520780834491 2437342.880338230 1.03122139447776 39.32544976332 19.5777794834243 -89.0626573531557 2063668.12144084 T 40 CATAB v2.0f-lin.ifort 2020-Dec-18 01:57:58 2020-Dec-18 01:57
2036-Jan-29 15:03 < 00:01 Jupiter 1.77518885221535 1.77518843602662 1.77518926840399 2.63633063718361 2.4486627358047 2464722.126987987 0.518718511398283 38.6134144524703 9.34452966187256 -88.0115746203821 2959657.76226976 T 40 CATAB v2.0f-lin.ifort 2020-Dec-18 01:57:58 2020-Dec-18 01:57
2046-Aug-16 11:10 < 00:01 Jupiter 1.46885375745085 1.46885336707298 1.46885414782963 1.46617320471511 0.998174823385386 2468573.965611014 0.77980117834339 174.303493779258 119.049103475305 44.97229034401 2136086.3741013 T 40 CATAB v2.0f-lin.ifort 2020-Dec-18 01:57:58 2020-Dec-18 01:57
2057-Mar-15 19:01 00:01 Jupiter 1.55579890262648 1.55579831892432 1.55579948632963 1.67755424028004 1.31351803124172 2472438.292498558 1.08028883959501 113.743966696387 42.744004749912 67.7112639871797 2784405.05107512 T 40 CATAB v2.0f-lin.ifort 2020-Dec-18 01:57:58 2020-Dec-18 01:57
2067-Oct-08 22:04 00:01 Jupiter 1.94085222573268 1.94085132642246 1.94085312504268 3.00861957435983 2.85988742508236 2476297.419432643 1.31947259882525 37.854627550818 32.1356144192217 83.8217145950497 1838524.42955066 T 40 CATAB v2.0f-lin.ifort 2020-Dec-18 01:57:58 2020-Dec-18 01:57
2142-Sep-19 04:58 00:03 Jupiter 1.69787114962835 1.69786954043833 1.69787275881654 2.29911279054097 2.07079045372427 2503670.706709233 2.89537508989733 52.2041574738566 15.0777193047213 80.3554721398921 908799.601272819 T 40 CATAB v2.0f-lin.ifort 2020-Dec-18 01:57:58 2020-Dec-18 01:57
2153-Apr-09 17:19 00:03 Jupiter 1.44659079379292 1.44659035089146 1.44659123669471 1.3874572837336 0.868318735356413 2507526.221705922 3.08273069213049 268.053556255984 187.317416958883 25.7418555520113 1776772.05207353 T 40 CATAB v2.0f-lin.ifort 2020-Dec-18 01:57:58 2020-Dec-18 01:57
2163-Nov-05 21:22 00:03 Jupiter 1.61220929540523 1.61220756677998 1.61221102403378 1.87180917900828 1.56617674843779 2511388.390377036 3.42483485581888 195.309490136669 22.1814744036501 78.6638092213539 2465373.78375898 T 40 CATAB v2.0f-lin.ifort 2020-Dec-18 01:57:58 2020-Dec-18 01:57

Alternate Designations
 A923 YO11 = 1942 DH = 1977 LP1 = A899 PE = A908 AE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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