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JPL Small-Body Database Browser
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461331 (2015 XX278)
Classification: Main-belt Asteroid          SPK-ID: 2461331
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08301364448078735 1.0882e-07  
a 3.117963600748344 8.3505e-08 au
q 2.859130078891785 3.7173e-07 au
i 12.98011898575773 9.2741e-06 deg
node 74.94153600894957 3.4306e-05 deg
peri 234.3622661354731 6.5826e-05 deg
M 38.70257403731961 5.5771e-05 deg
tp 2458784.306646796565
(2019-Oct-27.80664680)
0.00030886 TDB
period 2010.967205390214
5.51
8.0786e-05
2.212e-07
d
yr
n .1790183345780343 7.1917e-09 deg/d
Q 3.376797122604903 9.0437e-08 au
  Orbit Determination Parameters
   # obs. used (total)      91  
   data-arc span      5277 days (14.45 yr)  
   first obs. used      2004-12-18  
   last obs. used      2019-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57012  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:01:06  

Additional Information
 Earth MOID = 1.8661 au 
 Jupiter MOID = 1.82471 au 
 T_jup = 3.172 
[ 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 16.1   n/a MPO446804  

461331 (2015 XX278)          Discovered 2004-Dec-18 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2016-02-25

[ 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
1905-Jul-11 18:34 00:13 Jupiter 1.90569134214362 1.90568777739029 1.90569490690918 4.28388511313187 4.17884335471421 2417038.273913568 13.1849578282217 351.044153159414 101.381054590017 -64.4655577465439 1337722.72866823 T 11 CATAB v2.0f-lin.ifort 2019-Sep-24 08:01:07 2019-Sep-24 08:01
1977-Aug-28 03:45 00:04 Jupiter 1.85319287636297 1.853191831004 1.85319392172487 4.17166193198534 4.0606207557911 2443383.656466489 4.42822944553919 309.557945033569 41.6285984865137 -85.2410251860809 1519140.78858928 T 11 CATAB v2.0f-lin.ifort 2019-Sep-24 08:01:07 2019-Sep-24 08:01
2049-Oct-16 20:38 00:04 Jupiter 1.96515772957834 1.96515590623805 1.9651595529308 3.6766506792277 3.55748787513886 2469731.360040202 4.2307978393956 308.293045707661 38.8535989008483 -73.945383460326 1367886.1762497 T 11 CATAB v2.0f-lin.ifort 2019-Sep-24 08:01:07 2019-Sep-24 08:01
2060-Feb-02 20:47 00:05 Jupiter 1.86917007120265 1.86916878906749 1.86917135333813 4.33735639123937 4.23158974851889 2473492.365929142 5.38436739501497 227.384402436102 59.3815499842591 87.1728254194093 1675376.34896577 T 11 CATAB v2.0f-lin.ifort 2019-Sep-24 08:01:07 2019-Sep-24 08:01
2132-Mar-20 23:18 00:14 Jupiter 1.88717643869776 1.8871734196582 1.88717945792903 4.01987144316483 3.90662325264345 2499836.470841417 13.9832096951846 1025.59594730486 40.0481460377981 -80.9382745065016 1456399.4118292 T 11 CATAB v2.0f-lin.ifort 2019-Sep-24 08:01:07 2019-Sep-24 08:01
2142-Jul-11 01:57 00:15 Jupiter 1.95318788752406 1.95318280841909 1.95319296672196 4.44833923990955 4.34975848335954 2503600.581561327 15.461259621091 755.001704122959 70.7651005552688 -71.2403113178685 1590718.87478666 T 11 CATAB v2.0f-lin.ifort 2019-Sep-24 08:01:07 2019-Sep-24 08:01

Alternate Designations
 2015 XX278 = 2004 YH9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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