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885 Ulrike (A917 SV)
Classification: Main-belt Asteroid          SPK-ID: 2000885
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 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1842525721505681 1.6536e-08  
a 3.095923053929447 9.4382e-09 au
q 2.525491268062705 5.1978e-08 au
i 3.30742383930505 1.0469e-06 deg
node 148.8886618444691 1.089e-05 deg
peri 203.8220604103307 1.2554e-05 deg
M 354.493036398395 4.6654e-06 deg
tp 2459230.936406052786
(2021-Jan-16.43640605)
2.5814e-05 TDB
period 1989.681968446203
5.45
9.0985e-06
2.491e-08
d
yr
n .1809334384636022 8.2738e-10 deg/d
Q 3.66635483979619 1.1177e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3686  
   data-arc span      41787 days (114.41 yr)  
   first obs. used      1906-08-24  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42403  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 11:51:58  

Additional Information
 Earth MOID = 1.51883 au 
 Jupiter MOID = 1.77174 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 10.75   n/a E2021B10  
diameter diameter 30.537 km 0.756 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 4.90 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Menke, J. (2005) Minor Planet Bull. 32, 85-88.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.109   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

885 Ulrike (A917 SV)          Discovered 1917-Sep-23 by Belyavskij, S. at Simeis
Independent discovery Sept. 26 by M. Wolf, Heidelberg, was announced first.
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
1908-Dec-10 03:45 00:02 Jupiter 1.7751455978901 1.77514544621741 1.77514574956299 1.80870648878294 1.52220428159099 2418285.655916350 1.55815603974936 79.7271824278875 10.9518379055105 -81.5263100635817 6352740.9975719 T 47 CATAB v2.0f-lin.ifort 2021-Mar-16 11:52:56 2021-Mar-16 11:52
1969-Aug-09 15:38 < 00:01 Jupiter 1.84568239824939 1.84568213043896 1.84568266605983 1.94963154612401 1.69800502149754 2440443.151697401 0.663197782230286 35.0300752473248 7.60889551153628 -88.8115553747865 4958983.90054004 T 47 CATAB v2.0f-lin.ifort 2021-Mar-16 11:52:56 2021-Mar-16 11:52
1979-Jul-23 09:52 < 00:01 Jupiter 1.82295861761032 1.82295844798645 1.82295878723419 2.05318733771749 1.81281409040863 2444077.910846070 0.509353139998168 22.2627859407735 3.26604702809244 -79.916623702644 7719039.743915 T 47 CATAB v2.0f-lin.ifort 2021-Mar-16 11:52:56 2021-Mar-16 11:52
2040-Mar-23 00:13 < 00:01 Jupiter 1.78522836927221 1.78522819905012 1.7852285394943 1.77738390292016 1.48666408648848 2466236.508817917 0.420043527602198 27.3883046042459 15.0759991328393 -89.2964928878191 5122920.87417765 T 47 CATAB v2.0f-lin.ifort 2021-Mar-16 11:52:56 2021-Mar-16 11:52
2050-Mar-03 02:31 < 00:01 Jupiter 1.91209805626401 1.91209774565978 1.91209836686824 2.53451079338689 2.35324957926696 2469868.605125476 0.580901994344108 14.7655867541914 4.09834641062973 74.0579100829078 5624096.02542819 T 47 CATAB v2.0f-lin.ifort 2021-Mar-16 11:52:56 2021-Mar-16 11:52
2100-Nov-19 18:44 00:01 Jupiter 1.94576848575053 1.94576798305336 1.94576898844792 2.30947015016153 2.11258658011543 2488392.280805362 1.29380413243869 49.9430725850828 2.03300928904454 -84.9144199376906 5450077.82514254 T 47 CATAB v2.0f-lin.ifort 2021-Mar-16 11:52:56 2021-Mar-16 11:52
2110-Nov-04 08:28 00:01 Jupiter 1.77878974881602 1.77878956152126 1.77878993611129 1.81153196147927 1.52620111111715 2492028.852506692 1.47073958046723 78.7981237892263 11.6334543369382 -82.7441537532076 6228146.78811078 T 47 CATAB v2.0f-lin.ifort 2021-Mar-16 11:52:56 2021-Mar-16 11:52
2171-Jul-04 17:21 00:02 Jupiter 1.84771333177086 1.84771271819919 1.84771394534441 1.93616772877062 1.68282863569736 2514186.222680116 2.36043775614936 118.475115566636 7.58411490005554 86.6255288127122 5031931.54706933 T 47 CATAB v2.0f-lin.ifort 2021-Mar-16 11:52:56 2021-Mar-16 11:52
2181-Jun-16 18:23 00:03 Jupiter 1.8327117899599 1.83271119418636 1.832712385735 2.07035905131 1.83358901235042 2517821.265665595 2.53988526184177 105.120995652932 3.68405964909695 -84.4820870850576 7930021.77637429 T 47 CATAB v2.0f-lin.ifort 2021-Mar-16 11:52:56 2021-Mar-16 11:52

Alternate Designations
 A917 SV = 1933 QQ = 1934 XL = A906 SE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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