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80287 (1999 XZ44)
Classification: Main-belt Asteroid          SPK-ID: 2080287
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1255951295364488 3.3644e-08  
a 2.298240349801299 6.8436e-09 au
q 2.009592555362112 7.679e-08 au
i 3.550553251785745 4.4256e-06 deg
node 249.0926083011272 5.4385e-05 deg
peri 126.6700255208344 5.7068e-05 deg
M 49.59896710173861 1.7578e-05 deg
tp 2459025.167782185954
(2020-Jun-24.66778219)
6.1913e-05 TDB
period 1272.599049967795
3.48
5.6842e-06
1.556e-08
d
yr
n .2828856425824854 1.2635e-09 deg/d
Q 2.586888144240487 7.7031e-09 au
  Orbit Determination Parameters
   # obs. used (total)      887  
   data-arc span      8734 days (23.91 yr)  
   first obs. used      1997-03-05  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52283  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:46:27  

Additional Information
 Earth MOID = 1.01194 au 
 Jupiter MOID = 2.88288 au 
 T_jup = 3.580 
[ 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 16.20   n/a MPCxxxxx  

80287 (1999 XZ44)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ 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
2044-Apr-30 01:43 < 00:01 Hebe 0.0405091591182797 0.0405043595231571 0.0405139588833498 6.15503025313577 6.1550302282028 2467735.571604891 0.414010479027661 273.14758801184 28.3655318522034 -29.0070431832322 105369.128903539 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 13:46:30 2021-Apr-13 13:46
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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