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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 48 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1787239453822019 1.7838e-08  
a 3.113469637608651 1.1445e-08 au
q 2.557018060147539 5.8959e-08 au
i 1.618362964311185 1.2156e-06 deg
node 46.18868025397232 5.058e-05 deg
peri 296.6848291865119 5.0532e-05 deg
M 194.4965369490582 8.6359e-06 deg
tp 2460123.007623755310
(2023-Jun-27.50762376)
5.1233e-05 TDB
period 2006.621120971292
5.49
1.1064e-05
3.029e-08
d
yr
n .1794060653691038 9.8921e-10 deg/d
Q 3.669921215069763 1.349e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3761  
   data-arc span      43300 days (118.55 yr)  
   first obs. used      1902-09-04  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42111  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:28:31  

Additional Information
 Earth MOID = 1.54785 au 
 Jupiter MOID = 1.73896 au 
 T_jup = 3.193 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456628.5 (2013-Dec-02.0) TDB
Reference: JPL 48 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1717518833953558 1.7474e-08  
q 2.587722904408026 5.7e-08 au
tp 2456097.049011820432
(2012-Jun-18.54901182)
4.2753e-05 TDB
node 46.65318575821087 5.0326e-05 deg
peri 295.4312897113198 5.027e-05 deg
i 1.620228649317478 1.2114e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3761  
   data-arc span      43300 days (118.55 yr)  
   first obs. used      1902-09-04  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42111  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:28:31  

Additional Information
 Jupiter MOID = 1.73896 au 
 T_jup = 3.193 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.05323871687727E-16 -9.829810016724678E-16 -1.035038597995205E-13 3.236506624247889E-13 -3.336441881604339E-13 -6.32444494831436E-15
q -9.829810016724678E-16 3.248987970089117E-15 4.096539236082834E-13 -9.768450695570676E-13 1.026629512170441E-12 1.912981381754542E-14
tp -1.035038597995205E-13 4.096539236082834E-13 1.827788295544152E-9 1.622773571086248E-10 1.024207433377069E-10 -1.293635885858212E-11
node 3.236506624247889E-13 -9.768450695570676E-13 1.622773571086248E-10 2.532743981056315E-9 -2.509962696122784E-9 -2.66795715271076E-11
peri -3.336441881604339E-13 1.026629512170441E-12 1.024207433377069E-10 -2.509962696122784E-9 2.527104778422662E-9 2.416731184391373E-11
i -6.32444494831436E-15 1.912981381754542E-14 -1.293635885858212E-11 -2.66795715271076E-11 2.416731184391373E-11 1.467547709014678E-12

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 10.03   n/a E2021B10  
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. 2020-October); 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

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