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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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457009.5 (2014-Dec-18.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2655678585568377 2.3508e-08  
q 1.722672610112616 5.613e-08 au
tp 2457627.631571065361
(2016-Aug-27.13157107)
1.0524e-05 TDB
node 293.6676168435332 4.2106e-06 deg
peri 41.93289177637521 4.1787e-06 deg
i 11.66810930981245 4.7756e-07 deg
  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
 Jupiter MOID = 2.45031 au 
 T_jup = 3.486 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.526339741674292E-16 -1.31224100217528E-15 -2.697236554468118E-14 1.514823649415735E-14 2.534406288317923E-15 1.920410001467849E-15
q -1.31224100217528E-15 3.150583517033238E-15 6.086144210737186E-14 -3.528102103574102E-14 -1.012530432278357E-14 -4.503192461761583E-15
tp -2.697236554468118E-14 6.086144210737186E-14 1.10754978358706E-10 1.415884162434585E-11 6.222395448454472E-12 1.609885288848666E-12
node 1.514823649415735E-14 -3.528102103574102E-14 1.415884162434585E-11 1.772935252520541E-11 -1.489028305171476E-11 1.41816869616041E-12
peri 2.534406288317923E-15 -1.012530432278357E-14 6.222395448454472E-12 -1.489028305171476E-11 1.746156859300602E-11 -1.00589097571955E-12
i 1.920410001467849E-15 -4.503192461761583E-15 1.609885288848666E-12 1.41816869616041E-12 -1.00589097571955E-12 2.280646027651744E-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 13.48   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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