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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3088168025325007 6.6434e-08  
a 2.625063809576629 2.2427e-08 au
q 1.814399997459389 1.696e-07 au
i 29.00434861135381 1.4459e-05 deg
node 318.8359048469176 8.0357e-06 deg
peri 68.47934382113996 2.903e-05 deg
M 94.75093601880076 2.2469e-05 deg
tp 2458591.626247594505
(2019-Apr-18.12624759)
9.6236e-05 TDB
period 1553.489147978141
4.25
1.9908e-05
5.451e-08
d
yr
n .2317364112060508 2.9697e-09 deg/d
Q 3.435727621693868 2.9353e-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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48648  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 12:49:13  

Additional Information
 Earth MOID = .963823 au 
 Jupiter MOID = 2.53017 au 
 T_jup = 3.164 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457520.5 (2016-May-12.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3073546756267608 6.6867e-08  
q 1.819544385087018 1.7104e-07 au
tp 2457036.498353057664
(2015-Jan-13.99835306)
9.7325e-05 TDB
node 318.9961467223035 8.0211e-06 deg
peri 68.23124579199593 2.9287e-05 deg
i 29.03139544745726 1.4452e-05 deg
  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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48648  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 12:49:13  

Additional Information
 Jupiter MOID = 2.53017 au 
 T_jup = 3.164 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.471210308947007E-15 -1.139470495385101E-14 -5.406490668668179E-12 4.090361129480734E-14 -1.546213583159754E-12 -5.179180597250172E-14
q -1.139470495385101E-14 2.925634560541477E-14 1.409053431827451E-11 -1.07477204861959E-13 4.046173692456915E-12 1.251611758602335E-13
tp -5.406490668668179E-12 1.409053431827451E-11 9.472108356878827E-9 -7.200056786508195E-11 2.744907177410202E-9 7.321852100278121E-11
node 4.090361129480734E-14 -1.07477204861959E-13 -7.200056786508195E-11 6.433874237562591E-11 -7.591341131520165E-11 1.118538214548469E-11
peri -1.546213583159754E-12 4.046173692456915E-12 2.744907177410202E-9 -7.591341131520165E-11 8.577022324057348E-10 1.028847564651972E-11
i -5.179180597250172E-14 1.251611758602335E-13 7.321852100278121E-11 1.118538214548469E-11 1.028847564651972E-11 2.088694779640607E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO454788  
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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