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19516 (1998 QF80)
Classification: Main-belt Asteroid          SPK-ID: 2019516
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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2658552324282587 2.3546e-08  
a 2.345334453920198 8.0363e-09 au
q 1.721815017551241 5.6194e-08 au
i 11.66943067600384 4.7766e-07 deg
node 293.624121915392 4.2101e-06 deg
peri 41.88323157879347 4.1759e-06 deg
M 125.7669801541411 3.7416e-06 deg
tp 2458938.179023592641
(2020-Mar-29.67902359)
1.2265e-05 TDB
period 1311.914711670974
3.59
6.7429e-06
1.846e-08
d
yr
n .2744080821698166 1.4104e-09 deg/d
Q 2.968853890289155 1.0173e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2313  
   data-arc span      23970 days (65.63 yr)  
   first obs. used      1955-08-24  
   last obs. used      2021-04-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42905  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:11:21  

Additional Information
 Earth MOID = .728617 au 
 Jupiter MOID = 2.45031 au 
 T_jup = 3.486 
[ 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 13.48   n/a MPCxxxxx  
diameter diameter 10.731 km 0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.4383 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pravec, P.; Wolf, M.; Sarounova, L. (2016) http://www.asu.cas.cz/~ppravec/neo.htm]
[Aznar, A.M. (2017) Minor Planet Bull. 44, 60-63.]
[Salvaggio, F.; Marchini, A.; Papini, R. (2017) Minor Planet Bull. 44, 57-58.]
geometric albedo albedo 0.046   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

19516 (1998 QF80)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 QF80 = 1955 QW = 1955 SD = 2000 AT125 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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