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JPL Small-Body Database Browser
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19562 (1999 JM81)
Classification: Main-belt Asteroid          SPK-ID: 2019562
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1912978463190434 5.1093e-08  
a 2.594116987324709 1.4067e-08 au
q 2.097867994549847 1.3263e-07 au
i 12.25384933784678 4.3573e-06 deg
node 282.775908984824 2.4319e-05 deg
peri 69.25014186172747 2.6631e-05 deg
M 330.3372684203502 1.2223e-05 deg
tp 2459126.245196644207
(2020-Oct-03.74519664)
5.2216e-05 TDB
period 1526.099195226205
4.18
1.2414e-05
3.399e-08
d
yr
n .235895544094458 1.9188e-09 deg/d
Q 3.090365980099571 1.6758e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1257  
   data-arc span      23513 days (64.38 yr)  
   first obs. used      1954-12-22  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45933  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:44:13  

Additional Information
 Earth MOID = 1.12696 au 
 Jupiter MOID = 2.43047 au 
 T_jup = 3.360 
[ 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 13.3   n/a MPO337423  
diameter diameter 6.939 km 0.332 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.211   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19562 (1999 JM81)          Discovered 1999-May-14 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JM81 = 1978 PT = 1987 XC1 = 1991 VE7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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