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97241 (1999 XR84)
Classification: Main-belt Asteroid          SPK-ID: 2097241
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1104931196563509 4.1724e-08  
a 2.806201936605216 1.5113e-08 au
q 2.496135930244012 1.1427e-07 au
i 1.671537407960812 3.8085e-06 deg
node 281.7336012232163 0.0001543 deg
peri 165.2791440910635 0.00015573 deg
M 177.4005693512698 2.1428e-05 deg
tp 2458354.385153697882
(2018-Aug-23.88515370)
9.978e-05 TDB
period 1717.025744520713
4.70
1.3871e-05
3.798e-08
d
yr
n .209664881932501 1.6937e-09 deg/d
Q 3.11626794296642 1.6783e-08 au
  Orbit Determination Parameters
   # obs. used (total)      815  
   data-arc span      7502 days (20.54 yr)  
   first obs. used      1999-12-07  
   last obs. used      2020-06-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48399  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:15:48  

Additional Information
 Earth MOID = 1.51221 au 
 Jupiter MOID = 2.06412 au 
 T_jup = 3.313 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457486.5 (2016-Apr-08.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1117768041889923 4.1655e-08  
q 2.491495478885752 1.1402e-07 au
tp 2456640.148992377063
(2013-Dec-13.64899238)
9.5302e-05 TDB
node 281.7544680981505 0.0001543 deg
peri 165.6059677110671 0.0001557 deg
i 1.671946847440685 3.809e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      815  
   data-arc span      7502 days (20.54 yr)  
   first obs. used      1999-12-07  
   last obs. used      2020-06-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48399  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:15:48  

Additional Information
 Jupiter MOID = 2.06412 au 
 T_jup = 3.313 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.735100175013792E-15 -4.718356823604252E-15 -2.263656367504072E-13 1.208259116633594E-14 -1.294140128692102E-13 2.669480996234333E-16
q -4.718356823604252E-15 1.300054455558951E-14 8.454533225494744E-13 -3.349367713275032E-14 4.190500423636378E-13 -6.650542494311123E-16
tp -2.263656367504072E-13 8.454533225494744E-13 9.082395520027519E-9 -1.931587587841265E-11 1.999405840190342E-9 -9.137499164647574E-13
node 1.208259116633594E-14 -3.349367713275032E-14 -1.931587587841265E-11 2.380756011322977E-8 -2.380192521274559E-8 -2.502463514919717E-11
peri -1.294140128692102E-13 4.190500423636378E-13 1.999405840190342E-9 -2.380192521274559E-8 2.424112582730693E-8 2.481767901390561E-11
i 2.669480996234333E-16 -6.650542494311123E-16 -9.137499164647574E-13 -2.502463514919717E-11 2.481767901390561E-11 1.450872693454004E-11

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 15.04   n/a E2021B10  
diameter diameter 3.419 km 0.563 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.182   0.068 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

97241 (1999 XR84)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20050224/Numbers.arcLast Updated: 2005-02-28

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1962-Sep-28 20:41 00:02 Hebe 0.0498588048629152 0.0498476727641575 0.0498699369955322 5.90689294497624 5.90689292386778 2437936.361982108 1.72451406927162 558.764709748336 47.6737721787088 6.71292742701116 22580.1803414838 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 15:15:51 2021-Apr-13 15:15
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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