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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 ]

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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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1164140537037083 3.9963e-08  
a 2.17308474236099 4.5193e-09 au
q 1.920107138461069 8.6487e-08 au
i 6.058373848757433 3.4784e-06 deg
node 137.7766808294255 3.9114e-05 deg
peri 81.22212600571309 4.1477e-05 deg
M 210.5013898031587 1.4493e-05 deg
tp 2459486.401315912531
(2021-Sep-28.90131591)
4.7505e-05 TDB
period 1170.074246832075
3.20
3.6501e-06
9.993e-09
d
yr
n .3076727831372106 9.5979e-10 deg/d
Q 2.426062346260912 5.0454e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2791  
   data-arc span      24014 days (65.75 yr)  
   first obs. used      1954-05-06  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44379  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:56:25  

Additional Information
 Earth MOID = .923921 au 
 Jupiter MOID = 2.55615 au 
 T_jup = 3.671 
[ 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 12.9   n/a MPO279529  
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. 2019-August); 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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