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724 Hapag (A911 UP)
Classification: Main-belt Asteroid          SPK-ID: 2000724
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2509007666816827 5.3315e-08  
a 2.454535275464261 9.9153e-09 au
q 1.838690493003043 1.2715e-07 au
i 11.71244066226848 4.9228e-06 deg
node 204.2384454835212 1.938e-05 deg
peri 205.8461969625387 2.1033e-05 deg
M 71.99355112865449 6.8743e-06 deg
tp 2458719.605368488782
(2019-Aug-24.10536849)
2.6413e-05 TDB
period 1404.598964195146
3.85
8.511e-06
2.33e-08
d
yr
n .2563009151913228 1.553e-09 deg/d
Q 3.070380057925479 1.2403e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1613  
   data-arc span      39636 days (108.52 yr)  
   first obs. used      1911-10-22  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48206  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:11:17  

Additional Information
 Earth MOID = .855046 au 
 Jupiter MOID = 2.35122 au 
 T_jup = 3.422 
[ 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 13.8   n/a MPO412164  
diameter diameter 9.492 km 0.198 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.1305 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pilcher, F. (2012) Minor Planet Bull. 39, 57-60.]
[Vander Haagen, G.A. (2012) Minor Planet Bull. 39, 48-50.]
geometric albedo albedo 0.103   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

724 Hapag (A911 UP)          Discovered 1911-Oct-21 by Palisa, J. at Vienna
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A911 UP = 1988 VG2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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