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48774 Anngower (1997 PO2)
Classification: Main-belt Asteroid          SPK-ID: 2048774
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06597376429963171 5.1122e-08  
a 2.568643402508903 1.489e-08 au
q 2.399180328101977 1.3105e-07 au
i 6.480683960232328 4.7427e-06 deg
node 274.7701506405888 4.2605e-05 deg
peri 258.6509234055636 5.6691e-05 deg
M 323.5117184995545 3.9686e-05 deg
tp 2459152.907051328115
(2020-Oct-30.40705133)
0.00016628 TDB
period 1503.675597258579
4.12
1.3075e-05
3.58e-08
d
yr
n .2394133419843568 2.0817e-09 deg/d
Q 2.738106476915829 1.5872e-08 au
  Orbit Determination Parameters
   # obs. used (total)      886  
   data-arc span      10206 days (27.94 yr)  
   first obs. used      1992-05-24  
   last obs. used      2020-05-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57741  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:35:50  

Additional Information
 Earth MOID = 1.41461 au 
 Jupiter MOID = 2.2779 au 
 T_jup = 3.419 
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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 MPO417154  
diameter diameter 5.344 km 0.320 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48774 Anngower           Discovered 1997 Aug. 10 by D. D. Balam at National Research Council of Canada.
Ann C. Gower, associate professor of astronomy at the University of Victoria, is an outstanding radio astronomer and gifted teacher who takes a special interest in every student in her classes. She is an active member of the UVic Speakers Bureau, sharing with others her knowledge of galaxies and quasars.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030318/MPCPages.arcLast Updated: 2003-10-02

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Alternate Designations
 1997 PO2 = 2000 CO62 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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