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34720 (2001 PH54)
Classification: Main-belt Asteroid          SPK-ID: 2034720
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 .05601484568538696 4.2514e-08  
a 2.854626357887983 1.7189e-08 au
q 2.69472490296145 1.1858e-07 au
i 2.332165386319948 5.7859e-06 deg
node 169.6419978442267 0.00010935 deg
peri 256.7491538406071 0.00012131 deg
M 226.3524893802663 5.2059e-05 deg
tp 2459654.504455654392
(2022-Mar-16.00445565)
0.00025577 TDB
period 1761.660976278724
4.82
1.5911e-05
4.356e-08
d
yr
n .2043525995339083 1.8457e-09 deg/d
Q 3.014527812814517 1.8151e-08 au
  Orbit Determination Parameters
   # obs. used (total)      645  
   data-arc span      14789 days (40.49 yr)  
   first obs. used      1978-11-29  
   last obs. used      2019-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5979  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 03:33:41  

Additional Information
 Earth MOID = 1.70947 au 
 Jupiter MOID = 2.15467 au 
 T_jup = 3.301 
[ 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 15.1   n/a MPO263636  

34720 (2001 PH54)          Discovered 2001-Aug-14 by JPL/GEODSS NEAT at Haleakala
Reference: 20020128/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2190-Dec-07 19:56 00:02 Psych 0.0220455579383717 0.0220268709235064 0.0220643189729563 1.99044514146425 1.99044486573561 2521282.330632734 1.59955800925688 2219.83840641624 80.061615531143 -65.2708710815488 37284.5873293122 T 15 CATAB v2.0f-lin.ifort 2020-Feb-23 03:33:54 2020-Feb-23 03:33

Alternate Designations
 2001 PH54 = 1978 WJ11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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