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492 Gismonda (A902 RF)
Classification: Main-belt Asteroid          SPK-ID: 2000492
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .17849643753998 3.3345e-08  
a 3.114051118222762 1.1896e-08 au
q 2.558204087302608 1.0409e-07 au
i 1.618263861125655 3.3536e-06 deg
node 46.1970687709788 0.00013232 deg
peri 296.6504848879097 0.00013262 deg
M 158.6587788236798 1.0562e-05 deg
tp 2458115.896528358683
(2017-Dec-28.39652836)
5.6887e-05 TDB
period 2007.183290782674
5.50
1.1502e-05
3.149e-08
d
yr
n .1793558175046499 1.0278e-09 deg/d
Q 3.669898149142916 1.402e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3481  
   data-arc span      43018 days (117.78 yr)  
   first obs. used      1902-09-04  
   last obs. used      2020-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43196  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:15:03  

Additional Information
 Earth MOID = 1.55085 au 
 Jupiter MOID = 1.73839 au 
 T_jup = 3.193 
[ show covariance matrix ]

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 10.0   n/a MPO431496  
diameter diameter 53.418 km 0.151 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 6.488 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Koff, R.A. (2002) Minor Planet Bull. 29, 25-26.]
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
geometric albedo albedo 0.069   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

492 Gismonda (A902 RF)          Discovered 1902-Sep-03 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 A902 RF = A913 RB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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