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JPL Small-Body Database Browser
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938 Chlosinde (A920 RC)
Classification: Main-belt Asteroid          SPK-ID: 2000938
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .195703195702497 3.6587e-08  
a 3.148299305499297 1.1364e-08 au
q 2.532167070385133 1.1632e-07 au
i 2.6697656615707 3.5276e-06 deg
node 119.0657829742456 8.9347e-05 deg
peri 225.8747219290324 8.9877e-05 deg
M 265.8720342279145 1.225e-05 deg
tp 2459533.992870018128
(2021-Nov-15.49287002)
7.0849e-05 TDB
period 2040.386527331948
5.59
1.1048e-05
3.025e-08
d
yr
n .1764371579490596 9.553e-10 deg/d
Q 3.764431540613462 1.3588e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2807  
   data-arc span      36390 days (99.63 yr)  
   first obs. used      1920-09-10  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45095  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:15:39  

Additional Information
 Earth MOID = 1.52568 au 
 Jupiter MOID = 1.65318 au 
 T_jup = 3.177 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456210.5 (2012-Oct-10.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1953945910915686 3.6666e-08  
q 2.532774220876715 1.1645e-07 au
tp 2455456.563984765784
(2010-Sep-17.06398477)
6.2626e-05 TDB
node 119.0735615206423 8.9383e-05 deg
peri 226.5116575573908 8.9911e-05 deg
i 2.669354551053267 3.5267e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2807  
   data-arc span      36390 days (99.63 yr)  
   first obs. used      1920-09-10  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45095  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:15:39  

Additional Information
 Jupiter MOID = 1.65318 au 
 T_jup = 3.177 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.344379145568731E-15 -4.256453256224891E-15 6.335617891386218E-13 -8.600884033225303E-16 8.636460155583028E-14 3.100635169083668E-17
q -4.256453256224891E-15 1.35607335089279E-14 -1.881777989552679E-12 3.713341065672781E-15 -2.502331166573674E-13 3.618613193333807E-17
tp 6.335617891386218E-13 -1.881777989552679E-12 3.922030259794644E-9 -5.333618286956699E-12 6.414943238890489E-10 -4.695212928545102E-14
node -8.600884033225303E-16 3.713341065672781E-15 -5.333618286956699E-12 7.989338621285867E-9 -7.981037516486597E-9 3.295483592611987E-11
peri 8.636460155583028E-14 -2.502331166573674E-13 6.414943238890489E-10 -7.981037516486597E-9 8.083981089700455E-9 -3.290898403856414E-11
i 3.100635169083668E-17 3.618613193333807E-17 -4.695212928545102E-14 3.295483592611987E-11 -3.290898403856414E-11 1.243752733491587E-11

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 11.3   n/a MPO270199  
diameter diameter 33.466 km 0.164 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 19.204 h n/a LCDB (Rev. 2019-August); 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:
[Hayes-Gehrke, M.; Benik, J.; Kovacs, Z.; Knutson, S.; Mills, C. (2011) Minor Planet Bull. 38, 75.]
[Stephens, R.D. (2011) Minor Planet Bull. 38, 23-24.]
geometric albedo albedo 0.046   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

938 Chlosinde (A920 RC)          Discovered 1920-Sep-09 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A920 RC = 1948 RJ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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