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1492 Oppolzer (1938 FL)
Classification: Main-belt Asteroid          SPK-ID: 2001492
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 49 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1161706988349672 9.9302e-09  
a 2.173162696553121 3.9039e-09 au
q 1.920704867412464 2.1563e-08 au
i 6.058702569678552 7.3001e-07 deg
node 137.7744081349603 4.8408e-06 deg
peri 81.21227565209699 9.0422e-06 deg
M 332.3207591892971 6.6434e-06 deg
tp 2459486.468082100622
(2021-Sep-28.96808210)
2.1669e-05 TDB
period 1170.137207798714
3.20
3.1531e-06
8.633e-09
d
yr
n .3076562283471349 8.2901e-10 deg/d
Q 2.425620525693779 4.3574e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3561  
   data-arc span      24529 days (67.16 yr)  
   first obs. used      1954-05-06  
   last obs. used      2021-07-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42792  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 07:45:36  

Additional Information
 Earth MOID = .925059 au 
 Jupiter MOID = 2.55435 au 
 T_jup = 3.671 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457130.5 (2015-Apr-18.0) TDB
Reference: JPL 49 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1161936425076474 9.94e-09  
q 1.920439313780743 2.1585e-08 au
tp 2457146.426185737956
(2015-May-03.92618574)
2.0534e-05 TDB
node 137.8106616948705 4.8423e-06 deg
peri 81.23694060369621 9.0337e-06 deg
i 6.057984868789982 7.2997e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3561  
   data-arc span      24529 days (67.16 yr)  
   first obs. used      1954-05-06  
   last obs. used      2021-07-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42792  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 07:45:36  

Additional Information
 Jupiter MOID = 2.55435 au 
 T_jup = 3.671 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.880407224615284E-17 -2.118392114079906E-16 6.051922271169038E-16 -1.014018090153948E-14 1.096015832498756E-14 1.964682570471907E-15
q -2.118392114079906E-16 4.65919252392263E-16 6.753526951049285E-16 2.221855611585828E-14 -2.336363306460314E-14 -4.319612560628471E-15
tp 6.051922271169038E-16 6.753526951049285E-16 4.216456066058762E-10 -4.342315580309522E-12 1.590527254163404E-10 6.919903286309511E-13
node -1.014018090153948E-14 2.221855611585828E-14 -4.342315580309522E-12 2.344744530753942E-11 -2.38829569518025E-11 3.349348656556924E-13
peri 1.096015832498756E-14 -2.336363306460314E-14 1.590527254163404E-10 -2.38829569518025E-11 8.160793119214788E-11 -1.383457233908128E-14
i 1.964682570471907E-15 -4.319612560628471E-15 6.919903286309511E-13 3.349348656556924E-13 -1.383457233908128E-14 5.328555958166975E-13

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.01   n/a MPCxxxxx  
diameter diameter 12.27 km 1.5 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2
rotation period rot_per 3.76945 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Montigiani, N.; Mannucci, M.; Ferrini, L. (2015) Minor Planet Bull. 42, 245.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2015) http://www.asu.cas.cz/~ppravec/neo.htm]
[Salvaggio, F.; Franco, L.; Marchini, A.; Papini, R. (2015) Minor Planet Bull. 42, 283-284.]
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pravec, P.; Wolf, M.; Sarounova, L. (2018) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.0890   0.026 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2

1492 Oppolzer (1938 FL)          Discovered 1938-Mar-23 by Vaisala, Y. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1938 FL = 1971 VR 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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