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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 49 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1842525716893064 1.6535e-08  
a 3.095923054702044 9.2098e-09 au
q 2.525491270120979 5.1934e-08 au
i 3.307423859899121 1.0468e-06 deg
node 148.8886616300955 1.089e-05 deg
peri 203.8220601229537 1.2546e-05 deg
M 354.4930364047457 4.6647e-06 deg
tp 2459230.936406029080
(2021-Jan-16.43640603)
2.5809e-05 TDB
period 1989.681969191
5.45
8.8784e-06
2.431e-08
d
yr
n .1809334383958735 8.0736e-10 deg/d
Q 3.666354839283108 1.0907e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3689  
   data-arc span      41787 days (114.41 yr)  
   first obs. used      1906-08-24  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42461  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:58:19  

Additional Information
 Earth MOID = 1.51883 au 
 Jupiter MOID = 1.77174 au 
 T_jup = 3.194 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456830.5 (2014-Jun-22.0) TDB
Reference: JPL 49 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1875526880219364 1.6643e-08  
q 2.513362640621905 5.2628e-08 au
tp 2457247.152525760573
(2015-Aug-12.65252576)
2.5049e-05 TDB
node 149.0559229980919 1.0927e-05 deg
peri 204.5515614408818 1.2494e-05 deg
i 3.304090543084824 1.0466e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3689  
   data-arc span      41787 days (114.41 yr)  
   first obs. used      1906-08-24  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42461  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:58:19  

Additional Information
 Jupiter MOID = 1.77174 au 
 T_jup = 3.194 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.769837422953586E-16 -8.671404924668159E-16 1.730886794233564E-13 -6.311129882044822E-14 1.045053556230045E-13 -7.834495951625997E-15
q -8.671404924668159E-16 2.769677116682585E-15 -5.706170960028357E-13 2.009883320181527E-13 -3.380217524921056E-13 2.495468899142021E-14
tp 1.730886794233564E-13 -5.706170960028357E-13 6.27475651150905E-10 1.255503310261311E-11 1.454053075407718E-10 -2.172213321191627E-12
node -6.311129882044822E-14 2.009883320181527E-13 1.255503310261311E-11 1.193908032526137E-10 -1.175997130077495E-10 9.185907915938779E-12
peri 1.045053556230045E-13 -3.380217524921056E-13 1.454053075407718E-10 -1.175997130077495E-10 1.560896037333635E-10 -9.73549020159682E-12
i -7.834495951625997E-15 2.495468899142021E-14 -2.172213321191627E-12 9.185907915938779E-12 -9.73549020159682E-12 1.095306312730807E-12

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

[ show close-approach data ]
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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