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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 | Close-Approach Data ]

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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2658566340626505 2.3578e-08  
a 2.344986654083281 8.0248e-09 au
q 1.721556395306863 5.626e-08 au
i 11.67009117303223 4.7763e-07 deg
node 293.6236536799767 4.2105e-06 deg
peri 41.85037991225651 4.1768e-06 deg
M 72.01900784361845 3.5734e-06 deg
tp 2458938.106167242596
(2020-Mar-29.60616724)
1.2271e-05 TDB
period 1311.622898190697
3.59
6.7328e-06
1.843e-08
d
yr
n .2744691332368457 1.4089e-09 deg/d
Q 2.968416912859699 1.0158e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2294  
   data-arc span      23944 days (65.56 yr)  
   first obs. used      1955-08-24  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42517  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:56:14  

Additional Information
 Earth MOID = .727172 au 
 Jupiter MOID = 2.45087 au 
 T_jup = 3.486 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456999.5 (2014-Dec-08.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2655339992840409 2.3544e-08  
q 1.722800027651542 5.6228e-08 au
tp 2457627.645652788912
(2016-Aug-27.14565279)
1.0526e-05 TDB
node 293.6684521896707 4.2109e-06 deg
peri 41.92974838132085 4.1793e-06 deg
i 11.6682647862418 4.7759e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2294  
   data-arc span      23944 days (65.56 yr)  
   first obs. used      1955-08-24  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42517  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:56:14  

Additional Information
 Jupiter MOID = 2.45087 au 
 T_jup = 3.486 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.543044506734488E-16 -1.316529283053285E-15 -2.709421274623976E-14 1.516189204535428E-14 2.601562877371049E-15 1.924562762576428E-15
q -1.316529283053285E-15 3.161586731160541E-15 6.117356173208668E-14 -3.531500282620547E-14 -1.02988338976252E-14 -4.513829620637738E-15
tp -2.709421274623976E-14 6.117356173208668E-14 1.107981947388664E-10 1.416230534847148E-11 6.219902613998168E-12 1.610067733389754E-12
node 1.516189204535428E-14 -3.531500282620547E-14 1.416230534847148E-11 1.773154880101954E-11 -1.489113332995624E-11 1.418405505427031E-12
peri 2.601562877371049E-15 -1.02988338976252E-14 6.219902613998168E-12 -1.489113332995624E-11 1.746636056787827E-11 -1.00584832031015E-12
i 1.924562762576428E-15 -4.513829620637738E-15 1.610067733389754E-12 1.418405505427031E-12 -1.00584832031015E-12 2.280951076703046E-13

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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

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