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344968 (2004 XT31)
Classification: Main-belt Asteroid          SPK-ID: 2344968
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05777240606238785 1.1851e-07  
a 2.600451144945056 3.2164e-08 au
q 2.450216825453889 3.31e-07 au
i 21.42497124821254 3.7133e-06 deg
node 279.009677519369 2.7427e-05 deg
peri 117.887850850051 9.4492e-05 deg
M 302.3635457370681 8.4405e-05 deg
tp 2459245.725839665419
(2021-Jan-31.22583967)
0.0003587 TDB
period 1531.692110635748
4.19
2.8418e-05
7.78e-08
d
yr
n .235034180498963 4.3606e-09 deg/d
Q 2.750685464436223 3.4023e-08 au
  Orbit Determination Parameters
   # obs. used (total)      485  
   data-arc span      7245 days (19.84 yr)  
   first obs. used      2001-01-04  
   last obs. used      2020-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49411  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 06:21:58  

Additional Information
 Earth MOID = 1.51229 au 
 Jupiter MOID = 2.53835 au 
 T_jup = 3.315 
[ 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 15.86   n/a E2021B25  

344968 (2004 XT31)          Discovered 2004-Dec-09 by CSS at Catalina
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

[ 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
1977-Aug-11 15:35 00:02 Amphi 0.0185243008954851 0.0185203581207943 0.0185282677877698 6.3786720350618 6.37867198640977 2443367.149333945 2.48877126885004 1184.03717543679 84.8758286409033 81.3328301159187 32271.400451134 T 14 CATAB v2.0f-lin.ifort 2020-Dec-18 06:22:00 2020-Dec-18 06:22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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