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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1166495329314596 4.019e-08  
a 2.172803212458371 4.6183e-09 au
q 1.919346732573127 8.7058e-08 au
i 6.058439795861081 3.5866e-06 deg
node 137.7809934999499 3.9245e-05 deg
peri 81.23309702299211 4.1724e-05 deg
M 87.38895690717304 1.4533e-05 deg
tp 2458316.523060933005
(2018-Jul-17.02306093)
4.7061e-05 TDB
period 1169.846874047389
3.20
3.7298e-06
1.021e-08
d
yr
n .3077325827734073 9.8112e-10 deg/d
Q 2.426259692343615 5.157e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2624  
   data-arc span      23919 days (65.49 yr)  
   first obs. used      1954-05-06  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45233  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:05:28  

Additional Information
 Earth MOID = .923284 au 
 Jupiter MOID = 2.55689 au 
 T_jup = 3.671 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456325.5 (2013-Feb-02.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1170856211454681 4.0176e-08  
q 1.918260924373737 8.704e-08 au
tp 2455976.655955751196
(2012-Feb-19.15595575)
4.6183e-05 TDB
node 137.8262618728278 3.9276e-05 deg
peri 81.29474428453129 4.1733e-05 deg
i 6.056199488080059 3.5851e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2624  
   data-arc span      23919 days (65.49 yr)  
   first obs. used      1954-05-06  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45233  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:05:28  

Additional Information
 Jupiter MOID = 2.55689 au 
 T_jup = 3.671 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.614130109092603E-15 -3.493139711698246E-15 -8.307033212262145E-13 -7.959487345055463E-15 -2.480614938145535E-13 -1.876564575069203E-15
q -3.493139711698246E-15 7.575877520370052E-15 1.806665042488516E-12 1.741397117346372E-14 5.400083448075667E-13 4.132037977612559E-15
tp -8.307033212262145E-13 1.806665042488516E-12 2.132862349202307E-9 2.23426615876847E-12 6.702762655828751E-10 9.873898121495402E-13
node -7.959487345055463E-15 1.741397117346372E-14 2.23426615876847E-12 1.542586519049992E-9 -1.532971681669915E-9 6.773037852228988E-11
peri -2.480614938145535E-13 5.400083448075667E-13 6.702762655828751E-10 -1.532971681669915E-9 1.741681547310289E-9 -6.705759778143304E-11
i -1.876564575069203E-15 4.132037977612559E-15 9.873898121495402E-13 6.773037852228988E-11 -6.705759778143304E-11 1.285291600062422E-11

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-January); 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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