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708 Raphaela (A911 CB)
Classification: Main-belt Asteroid          SPK-ID: 2000708
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08556068290717994 2.8296e-08  
a 2.669685449224284 7.5859e-09 au
q 2.441265339041292 7.7836e-08 au
i 3.490007958632115 4.945e-07 deg
node 355.172960421104 1.2655e-05 deg
peri 197.2043567826945 1.1554e-05 deg
M 10.37474063564682 6.6441e-06 deg
tp 2459154.584077299204
(2020-Nov-01.08407730)
2.9388e-05 TDB
period 1593.267027369513
4.36
6.7909e-06
1.859e-08
d
yr
n .2259508254522537 9.6306e-10 deg/d
Q 2.898105559407275 8.235e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3559  
   data-arc span      46853 days (128.28 yr)  
   first obs. used      1892-12-10  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40528  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:47:00  

Additional Information
 Earth MOID = 1.44045 au 
 Jupiter MOID = 2.06112 au 
 T_jup = 3.374 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.60   n/a MPCxxxxx IRAS observations used: 3
diameter diameter 21.43 km 1.5 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3
rotation period rot_per 20.918 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2007) Minor Planet Bull. 34, 72-77.]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
geometric albedo albedo 0.2193   0.034 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3
B-V BV 0.880   0.037 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=4.13, mean=6.80, max.=9.46) deg.
U-B UB 0.376   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=4.13 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

708 Raphaela (A911 CB)          Discovered 1911-Feb-03 by Helffrich, J. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A911 CB = A892 XA = A907 EG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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