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JPL Small-Body Database Browser
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376722 (1997 HF)
Classification: Main-belt Asteroid          SPK-ID: 2376722
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09104252246674316 5.4155e-08  
a 2.785662666538554 2.825e-08 au
q 2.53204891063545 1.5642e-07 au
i 8.475496526391156 6.3329e-06 deg
node 214.8245656729002 4.116e-05 deg
peri 306.003669761781 5.4448e-05 deg
M 31.28925536757682 3.7696e-05 deg
tp 2458852.900821743206
(2020-Jan-04.40082174)
0.00017697 TDB
period 1698.209290960222
4.65
2.5832e-05
7.072e-08
d
yr
n .2119880051983724 3.2247e-09 deg/d
Q 3.039276422441657 3.0821e-08 au
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      7919 days (21.68 yr)  
   first obs. used      1997-04-28  
   last obs. used      2019-01-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57012  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 16:25:26  

Additional Information
 Earth MOID = 1.54996 au 
 Jupiter MOID = 1.97891 au 
 T_jup = 3.309 
[ 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 16.5   n/a MPO471859  

376722 (1997 HF)          Discovered 1997-Apr-28 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-11-20

[ show close-approach data ]
Alternate Designations
 1997 HF = 1999 TO321 = 2004 VT46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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