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957 Camelia (A921 RF)
Classification: Main-belt Asteroid          SPK-ID: 2000957
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08055778814767953 3.3036e-08  
a 2.92395192017787 1.1438e-08 au
q 2.68840482083818 9.5429e-08 au
i 14.76126408007274 3.9618e-06 deg
node 232.783280404204 1.3933e-05 deg
peri 224.57324836065 2.7724e-05 deg
M 199.1566432946524 2.529e-05 deg
tp 2459816.432805294476
(2022-Aug-24.93280529)
0.00012958 TDB
period 1826.222828985795
5.00
1.0716e-05
2.934e-08
d
yr
n .1971281895539157 1.1567e-09 deg/d
Q 3.15949901951756 1.236e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2837  
   data-arc span      36122 days (98.90 yr)  
   first obs. used      1921-09-07  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42399  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:25:22  

Additional Information
 Earth MOID = 1.72339 au 
 Jupiter MOID = 2.18368 au 
 T_jup = 3.225 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456399.5 (2013-Apr-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08279637479297736 3.3153e-08  
q 2.676670372632943 9.6316e-08 au
tp 2456158.761279172692
(2012-Aug-19.26127917)
0.00012061 TDB
node 232.8938060565817 1.3891e-05 deg
peri 222.4111968854547 2.7182e-05 deg
i 14.79603054035103 3.9689e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2837  
   data-arc span      36122 days (98.90 yr)  
   first obs. used      1921-09-07  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42399  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:25:22  

Additional Information
 Jupiter MOID = 2.18368 au 
 T_jup = 3.225 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.099114932190524E-15 -3.175595314126136E-15 -1.543601586147648E-13 -1.780712718956701E-15 -2.955815490743038E-14 -5.520513335560637E-16
q -3.175595314126136E-15 9.27679072309118E-15 6.938910117330246E-13 4.042516070211546E-15 1.352506241223245E-13 1.428673591873074E-15
tp -1.543601586147648E-13 6.938910117330246E-13 1.454767898884818E-8 2.134939627010025E-12 2.831949871668273E-9 1.740018806308922E-13
node -1.780712718956701E-15 4.042516070211546E-15 2.134939627010025E-12 1.929580386936654E-10 -1.860700241469361E-10 3.669443952628127E-12
peri -2.955815490743038E-14 1.352506241223245E-13 2.831949871668273E-9 -1.860700241469361E-10 7.388403101373196E-10 -3.526681531890123E-12
i -5.520513335560637E-16 1.428673591873074E-15 1.740018806308922E-13 3.669443952628127E-12 -3.526681531890123E-12 1.575217960031396E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.9   n/a MPO302064  
diameter diameter 91.548 km 0.450 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 150. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Warner, B.D. (2010) Minor Planet Bull. 37, 127-130.]
geometric albedo albedo 0.025   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

957 Camelia (A921 RF)          Discovered 1921-Sep-07 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A921 RF = 1932 AG = 1958 BM 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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