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19552 (1999 JJ68)
Classification: Main-belt Asteroid          SPK-ID: 2019552
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2026740702272754 3.4877e-08  
a 2.399328702716567 1.044e-08 au
q 1.913046988723872 8.2016e-08 au
i 3.492803275057534 3.7176e-06 deg
node 136.3453963667344 6.7369e-05 deg
peri 202.2505640265884 6.8397e-05 deg
M 195.7632054294802 1.5188e-05 deg
tp 2459819.799900891402
(2022-Aug-28.29990089)		 5.9882e-05 TDB
period 1357.478784847907
3.72		 8.8604e-06
2.426e-08		 d
yr
n .2651975147002644 1.731e-09 deg/d
Q 2.885610416709262 1.2556e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1417  
   data-arc span      9485 days (25.97 yr)  
   first obs. used      1995-03-27  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53134  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:57:43  

Additional Information
 Earth MOID = .90262 au 
 Jupiter MOID = 2.50323 au 
 T_jup = 3.496 
[ 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 14.73   n/a E2021B10  
diameter diameter 2.602 km 0.352 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.286   0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19552 (1999 JJ68)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JJ68 = 1998 BZ45 = 2000 RP7 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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