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243580 (1997 PG1)
Classification: Main-belt Asteroid          SPK-ID: 2243580
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3089949700731555 6.6468e-08  
a 2.624680061613299 2.2452e-08 au
q 1.81366712452349 1.6962e-07 au
i 29.00565615862335 1.446e-05 deg
node 318.8373141128901 8.0361e-06 deg
peri 68.45940765517025 2.9011e-05 deg
M 141.1135659716918 2.255e-05 deg
tp 2458591.693541422174
(2019-Apr-18.19354142)
9.6136e-05 TDB
period 1553.148512539073
4.25
1.9929e-05
5.456e-08
d
yr
n .2317872354727207 2.9742e-09 deg/d
Q 3.435692998703108 2.939e-08 au
  Orbit Determination Parameters
   # obs. used (total)      386  
   data-arc span      8295 days (22.71 yr)  
   first obs. used      1997-08-05  
   last obs. used      2020-04-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48625  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 01:44:11  

Additional Information
 Earth MOID = .961631 au 
 Jupiter MOID = 2.53084 au 
 T_jup = 3.164 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.98   n/a E2021B55  
diameter diameter 1.480 km 0.144 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.464   0.113 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243580 (1997 PG1)          Discovered 1997-Aug-05 by Lopez, A., Pacheco, R. at Mallorca
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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