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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1291690381944604 3.696e-08  
a 3.153371838000989 1.3e-08 au
q 2.746053830616903 1.1799e-07 au
i 1.252972282326216 4.0569e-06 deg
node 29.34175724274135 0.00016436 deg
peri 132.0472341838784 0.00016493 deg
M 8.16037732654512 1.4186e-05 deg
tp 2459154.137276099397
(2020-Oct-31.63727610)
8.0523e-05 TDB
period 2045.319712107399
5.60
1.2648e-05
3.463e-08
d
yr
n .1760116024252626 1.0884e-09 deg/d
Q 3.560689845385074 1.4679e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3299  
   data-arc span      41282 days (113.02 yr)  
   first obs. used      1908-01-13  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44937  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:51:52  

Additional Information
 Earth MOID = 1.75435 au 
 Jupiter MOID = 1.41713 au 
 T_jup = 3.194 
[ 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 10.93   n/a E2021B10  
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

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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 1.83895093424747 1.83894977984846 1.83895208864607 2.94292189113428 2.78201139314444 2425760.806510450 1.82666650120246 47.3287892238137 29.3671313541228 50.4614349719585 1432006.35584633 T 42 CATAB v2.0f-lin.ifort 2021-Feb-24 00:52:01 2021-Feb-24 00:52
1939-Dec-17 12:32 00:02 Jupiter 1.49742496818418 1.49742436021534 1.49742557615225 1.57656347587289 1.16372116105537 2429615.022012501 1.56424572500363 121.741624139833 95.5880170031212 48.2652529323169 1600271.53670096 T 42 CATAB v2.0f-lin.ifort 2021-Feb-24 00:52:01 2021-Feb-24 00:52
1950-Jul-19 12:35 00:01 Jupiter 1.50705793363003 1.50705741733549 1.50705844992783 1.52776717252451 1.09999921517239 2433482.024388354 1.26021275764054 187.134136535724 72.9373233204346 59.7263303115723 2827559.67489881 T 42 CATAB v2.0f-lin.ifort 2021-Feb-24 00:52:01 2021-Feb-24 00:52
1961-Feb-12 09:08 < 00:01 Jupiter 1.8614900041762 1.86148934313197 1.86149066522021 2.67134977380675 2.49520775371334 2437342.880337397 0.998559505977742 39.0765472684746 18.5903709968386 -89.4627928499103 2208881.43985682 T 42 CATAB v2.0f-lin.ifort 2021-Feb-24 00:52:01 2021-Feb-24 00:52
2036-Jan-29 15:03 < 00:01 Jupiter 1.77518885010447 1.77518843471684 1.775189265492 2.63633068415875 2.44866278614835 2464722.126996165 0.494746138543897 37.8323620067754 9.33601818199009 -88.0029963516779 2967336.3692543 T 42 CATAB v2.0f-lin.ifort 2021-Feb-24 00:52:01 2021-Feb-24 00:52
2046-Aug-16 11:10 < 00:01 Jupiter 1.46885375615298 1.46885337089476 1.46885414141204 1.46617321710475 0.998174841073502 2468573.965613061 0.743195914639339 172.265670206238 117.743017364424 45.3817683922753 2166174.81554051 T 42 CATAB v2.0f-lin.ifort 2021-Feb-24 00:52:01 2021-Feb-24 00:52
2057-Mar-15 19:01 00:01 Jupiter 1.55579890105192 1.55579831939618 1.55579948270863 1.67755422662842 1.31351801338712 2472438.292505942 1.03339813118519 112.757827615309 42.0027296076252 67.1832704106173 2816790.52956488 T 42 CATAB v2.0f-lin.ifort 2021-Feb-24 00:52:01 2021-Feb-24 00:52
2067-Oct-08 22:04 00:01 Jupiter 1.94085222092288 1.94085133830744 1.94085310353811 3.00861955140553 2.85988740055613 2476297.419442100 1.26120811929315 37.6291560360075 31.4238266907276 84.5576521570169 1861310.18361486 T 42 CATAB v2.0f-lin.ifort 2021-Feb-24 00:52:01 2021-Feb-24 00:52
2142-Sep-19 04:58 00:03 Jupiter 1.69787116235582 1.69786960416547 1.69787272054453 2.29911288470051 2.0707905600716 2503670.706734696 2.77791024218306 50.740421423697 14.7461489365782 80.4704714277314 934164.258983972 T 42 CATAB v2.0f-lin.ifort 2021-Feb-24 00:52:01 2021-Feb-24 00:52
2153-Apr-09 17:19 00:03 Jupiter 1.44659079450459 1.44659036542347 1.44659122358613 1.38745732162178 0.868318796228404 2507526.221734380 2.95635993818629 262.655992317884 184.882430622517 27.6272389488256 1833202.20336851 T 42 CATAB v2.0f-lin.ifort 2021-Feb-24 00:52:01 2021-Feb-24 00:52
2163-Nov-05 21:22 00:03 Jupiter 1.61220928070787 1.6122075961561 1.61221096526267 1.8718091302167 1.56617668706666 2511388.390401843 3.2866273960241 189.392368964725 21.8325944774007 78.3726144977019 2502934.84798832 T 42 CATAB v2.0f-lin.ifort 2021-Feb-24 00:52:01 2021-Feb-24 00:52

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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