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48452 (1991 PH7)
Classification: Main-belt Asteroid          SPK-ID: 2048452
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2423629205680513 5.6752e-08  
a 2.33057417280651 1.0337e-08 au
q 1.765729409684654 1.3611e-07 au
i 2.611618470923493 5.6363e-06 deg
node 18.89887962130127 8.2968e-05 deg
peri 333.6448086988815 8.3362e-05 deg
M 265.0883440008848 7.5872e-06 deg
tp 2458943.117759736125
(2020-Apr-03.61775974)
2.8132e-05 TDB
period 1299.549483217899
3.56
8.6461e-06
2.367e-08
d
yr
n .2770190782644003 1.8431e-09 deg/d
Q 2.895418935928367 1.2842e-08 au
  Orbit Determination Parameters
   # obs. used (total)      677  
   data-arc span      24342 days (66.64 yr)  
   first obs. used      1952-09-15  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57619  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:38:25  

Additional Information
 Earth MOID = .760036 au 
 Jupiter MOID = 2.5385 au 
 T_jup = 3.530 
[ 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 16.2   n/a MPO436121  
diameter diameter 1.517 km 0.318 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.335   0.205 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48452 (1991 PH7)          Discovered 1991-Aug-06 by Elst, E. W. at La Silla
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 PH7 = 1984 SB7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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