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452998 (2007 HN68)
Classification: Main-belt Asteroid          SPK-ID: 2452998
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1254115368218466 6.4441e-07  
a 3.00721396176016 1.5744e-07 au
q 2.630074637263704 2.068e-06 au
i 11.3320589247695 1.1309e-05 deg
node 40.43273334919883 6.3586e-05 deg
peri 130.837365599579 0.00024082 deg
M 210.7346829673587 0.00013893 deg
tp 2459790.271263239820
(2022-Jul-29.77126324)
0.00068482 TDB
period 1904.780430032254
5.22
0.00014959
4.096e-07
d
yr
n .188998161847927 1.4843e-08 deg/d
Q 3.384353286256616 1.7719e-07 au
  Orbit Determination Parameters
   # obs. used (total)      60  
   data-arc span      3660 days (10.02 yr)  
   first obs. used      2007-03-16  
   last obs. used      2017-03-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60108  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 10:44:24  

Additional Information
 Earth MOID = 1.65003 au 
 Jupiter MOID = 1.62659 au 
 T_jup = 3.209 
[ show covariance matrix ]

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 16.7   n/a MPO477168  

452998 (2007 HN68)          Discovered 2007-Mar-16 by Spacewatch at Kitt Peak
Reference: Last Updated: 2016-01-04

[ show close-approach data ]
Alternate Designations
 2007 HN68 = 2010 XY21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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