Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
390260 (2012 XU131)
Classification: Main-belt Asteroid          SPK-ID: 2390260
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1043586126261981 8.7344e-08  
a 2.563694034786939 4.4981e-08 au
q 2.296150482118514 2.0535e-07 au
i 4.531005813472036 7.3546e-06 deg
node 114.7511341923128 9.7464e-05 deg
peri 238.9342901179413 0.00010648 deg
M 5.75683300486794 4.8165e-05 deg
tp 2458976.523883125635
(2020-May-07.02388313)
0.00020031 TDB
period 1499.331675501585
4.10
3.9459e-05
1.08e-07
d
yr
n .2401069795844644 6.3191e-09 deg/d
Q 2.831237587455364 4.9675e-08 au
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      5350 days (14.65 yr)  
   first obs. used      2003-07-25  
   last obs. used      2018-03-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53903  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:59:05  

Additional Information
 Earth MOID = 1.29452 au 
 Jupiter MOID = 2.56362 au 
 T_jup = 3.421 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456787.5 (2014-May-10.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1062317943931343 8.7706e-08  
q 2.290921306993667 2.0687e-07 au
tp 2457478.359276645146
(2016-Mar-30.85927664)
0.00018246 TDB
node 114.8079589728196 9.7608e-05 deg
peri 239.3533359767005 0.00010629 deg
i 4.528423153080401 7.3501e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      5350 days (14.65 yr)  
   first obs. used      2003-07-25  
   last obs. used      2018-03-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53903  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:59:05  

Additional Information
 Jupiter MOID = 2.56362 au 
 T_jup = 3.421 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.692334776094612E-15 -1.789727268068636E-14 6.931338902322329E-12 -1.522418502174296E-13 1.244468796093486E-12 3.53160330800223E-15
q -1.789727268068636E-14 4.279365541946241E-14 -1.578914482250005E-11 3.558493248482914E-13 -2.939787698718562E-12 -7.432773247933731E-15
tp 6.931338902322329E-12 -1.578914482250005E-11 3.329104439780501E-8 -3.15676918073959E-10 7.680561843993737E-9 -1.03557849249469E-11
node -1.522418502174296E-13 3.558493248482914E-13 -3.15676918073959E-10 9.52725959936368E-9 -9.561443062222138E-9 -1.259295181619001E-10
peri 1.244468796093486E-12 -2.939787698718562E-12 7.680561843993737E-9 -9.561443062222138E-9 1.129746226175917E-8 1.227919073063867E-10
i 3.53160330800223E-15 -7.432773247933731E-15 -1.03557849249469E-11 -1.259295181619001E-10 1.227919073063867E-10 5.402405932651461E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8   n/a MPO472011  
rotation period rot_per 1.78 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

390260 (2012 XU131)          Discovered 2008-Dec-01 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-03-21

Alternate Designations
 2012 XU131 = 2008 XJ19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-22 01:20 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin