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357 Ninina (A893 CB)
Classification: Main-belt Asteroid          SPK-ID: 2000357
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 60 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07694019187953836 2.3204e-08  
a 3.15179382263206 1.0298e-08 au
q 2.909294201154005 6.9135e-08 au
i 15.05501541292084 1.1727e-06 deg
node 137.6441901613811 3.6813e-06 deg
peri 255.4500457546911 8.6723e-06 deg
M 65.09394169864581 7.9733e-06 deg
tp 2458830.950008440181
(2019-Dec-13.45000844)
4.4927e-05 TDB
period 2043.7846209627
5.60
1.0016e-05
2.742e-08
d
yr
n .1761438051287549 8.6326e-10 deg/d
Q 3.394293444110114 1.109e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3479  
   data-arc span      46785 days (128.09 yr)  
   first obs. used      1893-02-15  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38616  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:16:41  

Additional Information
 Earth MOID = 1.95585 au 
 Jupiter MOID = 1.97963 au 
 T_jup = 3.150 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455697.5 (2011-May-16.0) TDB
Reference: JPL 60 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07362825035474022 2.317e-08  
q 2.920582273371494 6.8737e-08 au
tp 2454720.570643409968
(2008-Sep-11.07064341)
4.8141e-05 TDB
node 137.8712416583754 3.6681e-06 deg
peri 251.4470304231428 8.9837e-06 deg
i 15.0809657589452 1.1747e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3479  
   data-arc span      46785 days (128.09 yr)  
   first obs. used      1893-02-15  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38616  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:16:41  

Additional Information
 Jupiter MOID = 1.97963 au 
 T_jup = 3.150 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.368590341475567E-16 -1.580629716002603E-15 -8.292214133253225E-14 1.038107473592395E-16 -3.544435455103632E-14 -2.496581220373385E-15
q -1.580629716002603E-15 4.724838882334433E-15 1.679152137677934E-13 -8.541457170604433E-16 1.061035582706754E-13 7.354664418762906E-15
tp -8.292214133253225E-14 1.679152137677934E-13 2.317514822409377E-9 3.009891020340187E-11 3.8372965156023E-10 -1.286524021441894E-11
node 1.038107473592395E-16 -8.541457170604433E-16 3.009891020340187E-11 1.345474172996534E-11 -7.889345685037817E-12 -1.765363752735338E-12
peri -3.544435455103632E-14 1.061035582706754E-13 3.8372965156023E-10 -7.889345685037817E-12 8.070742344865112E-11 -3.143206796518447E-13
i -2.496581220373385E-15 7.354664418762906E-15 -1.286524021441894E-11 -1.765363752735338E-12 -3.143206796518447E-13 1.379858381620915E-12

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 8.86   n/a MPCxxxxx IRAS observations used: 14
diameter diameter 124.107 km 0.857 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 36.0105 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:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Oey, J. (2014) Minor Planet Bull. 41, 276-281.]
geometric albedo albedo 0.037   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.715   0.038 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=6.40, mean=8.05, max.=9.45) deg.
U-B UB 0.350   0.038 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=6.40, mean=8.05, max.=9.45) deg.
Tholen spectral type spec_T CX   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

357 Ninina (A893 CB)          Discovered 1893-Feb-11 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A893 CB = 1972 BN = A907 SA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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