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JPL Small-Body Database Browser
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80423 (1999 XJ215)
Classification: Main-belt Asteroid          SPK-ID: 2080423
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09408369865069606 4.839e-08  
a 2.260573031475174 9.233e-09 au
q 2.047889959603973 1.1207e-07 au
i 6.211790374991913 4.4365e-06 deg
node 146.473747227835 4.1992e-05 deg
peri 13.70597549862883 4.7694e-05 deg
M 314.5573592940641 2.4019e-05 deg
tp 2459157.206604326855
(2020-Nov-03.70660433)
8.3222e-05 TDB
period 1241.441445331739
3.40
7.6058e-06
2.082e-08
d
yr
n .2899854853031756 1.7766e-09 deg/d
Q 2.473256103346374 1.0102e-08 au
  Orbit Determination Parameters
   # obs. used (total)      957  
   data-arc span      8361 days (22.89 yr)  
   first obs. used      1997-03-07  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51716  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 18:58:41  

Additional Information
 Earth MOID = 1.05735 au 
 Jupiter MOID = 2.50276 au 
 T_jup = 3.606 
[ 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 15.6   n/a MPO502639  
diameter diameter 2.822 km 0.178 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.168   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

80423 (1999 XJ215)          Discovered 1999-Dec-14 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

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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
2132-Aug-28 11:10 < 00:01 Iris 0.0379820240850889 0.0379653237683795 0.0379987257162498 6.41898449550897 6.41898447192979 2499996.965052085 0.401877213349253 904.170207595751 34.0291167053096 22.9643054483502 65386.6425974365 T 24 CATAB v2.0f-lin.ifort 2020-Feb-23 18:58:57 2020-Feb-23 18:58

Alternate Designations
 1999 XJ215 = 1997 EY25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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