Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
706 Hirundo (A910 TF)
Classification: Main-belt Asteroid          SPK-ID: 2000706
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .194618628901669 2.3274e-08  
a 2.729080779554326 7.9941e-09 au
q 2.197950820075565 6.3081e-08 au
i 14.4321412673349 4.3133e-07 deg
node 325.3438538931595 3.4522e-06 deg
peri 31.09460827930393 5.8267e-06 deg
M 168.2192847607919 5.1968e-06 deg
tp 2458431.021846106499
(2018-Nov-08.52184611)
2.2014e-05 TDB
period 1646.732333903168
4.51
7.2355e-06
1.981e-08
d
yr
n .2186147636675778 9.6056e-10 deg/d
Q 3.260210739033087 9.5499e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3062  
   data-arc span      40343 days (110.45 yr)  
   first obs. used      1910-10-09  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .3796  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:46:49  

Additional Information
 Earth MOID = 1.20219 au 
 Jupiter MOID = 2.21012 au 
 T_jup = 3.283 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456900.5 (2014-Aug-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1944624409775917 2.3388e-08  
q 2.197421726315995 6.3471e-08 au
tp 2456778.012087515473
(2014-Apr-30.51208752)
1.9704e-05 TDB
node 325.5119328177549 3.4406e-06 deg
peri 29.8918630223137 5.824e-06 deg
i 14.46975566292429 4.3138e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3062  
   data-arc span      40343 days (110.45 yr)  
   first obs. used      1910-10-09  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .3796  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:46:49  

Additional Information
 Jupiter MOID = 2.21012 au 
 T_jup = 3.283 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.469963740662677E-16 -1.476968557580322E-15 2.784386387284195E-13 8.708919363254814E-15 6.031814286784947E-15 -1.504972461281604E-15
q -1.476968557580322E-15 4.028535140547443E-15 -7.392272922277574E-13 -2.380341365779115E-14 -1.129765189548356E-14 4.145649613187104E-15
tp 2.784386387284195E-13 -7.392272922277574E-13 3.882506049026409E-10 -1.554373028124215E-11 8.07252619619745E-11 1.41799659872525E-14
node 8.708919363254814E-15 -2.380341365779115E-14 -1.554373028124215E-11 1.183787017061127E-11 -1.562772062313604E-11 -4.07644344630074E-13
peri 6.031814286784947E-15 -1.129765189548356E-14 8.07252619619745E-11 -1.562772062313604E-11 3.391925680328606E-11 4.965098676266345E-13
i -1.504972461281604E-15 4.145649613187104E-15 1.41799659872525E-14 -4.07644344630074E-13 4.965098676266345E-13 1.860899458488768E-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 11.05   n/a E2021B10  
diameter diameter 30.819 km 0.553 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 22.027 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Holliday, B. (2001) Minor Planet Bull. 28, 22.]
[Warner, B.D. (2001) Minor Planet Bull. 28, 4-5.]
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.081   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B Cgh   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

706 Hirundo (A910 TF)          Discovered 1910-Oct-09 by Helffrich, J. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A910 TF = 1948 AE = 1957 DA = 1977 QB = A924 WD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-08 05:35 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin