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
JPL Small-Body Database Browser
Search: [ help ]  
27142 (1998 XG61)
Classification: Main-belt Asteroid          SPK-ID: 2027142
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09352640686493091 3.9774e-08  
a 2.732821424114733 1.4295e-08 au
q 2.477230455713779 1.1109e-07 au
i 15.23259237771219 5.2402e-06 deg
node 293.849254967981 1.5564e-05 deg
peri 77.08732556370896 3.1505e-05 deg
M 3.751321319555096 2.644e-05 deg
tp 2458983.305202249645
(2020-May-13.80520225)
0.00012119 TDB
period 1650.119161443067
4.52
1.2947e-05
3.545e-08
d
yr
n .2181660624346498 1.7118e-09 deg/d
Q 2.988412392515687 1.5632e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1980  
   data-arc span      26170 days (71.65 yr)  
   first obs. used      1948-12-10  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46464  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 02:27:22  

Additional Information
 Earth MOID = 1.52527 au 
 Jupiter MOID = 2.47333 au 
 T_jup = 3.296 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456796.5 (2014-May-19.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0959233584690198 4.0075e-08  
q 2.471137643739183 1.1231e-07 au
tp 2457329.763766742052
(2015-Nov-03.26376674)
0.0001167 TDB
node 293.9856363066493 1.5588e-05 deg
peri 76.48385139916334 3.0644e-05 deg
i 15.21709294064341 5.2377e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1980  
   data-arc span      26170 days (71.65 yr)  
   first obs. used      1948-12-10  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46464  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 02:27:22  

Additional Information
 Jupiter MOID = 2.47333 au 
 T_jup = 3.296 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.606043353580444E-15 -4.471404495426651E-15 -1.473687804461031E-12 -9.210984717754153E-16 -3.18016003902744E-13 -3.375140977811505E-15
q -4.471404495426651E-15 1.261331808563891E-14 3.962538984503792E-12 4.445771528128092E-15 8.389023657732989E-13 1.037650867136214E-14
tp -1.473687804461031E-12 3.962538984503792E-12 1.361885291988572E-8 3.6668620562854E-12 3.092309485047275E-9 5.584227250948632E-12
node -9.210984717754153E-16 4.445771528128092E-15 3.6668620562854E-12 2.429715893638875E-10 -2.33251351666747E-10 2.251342049968409E-11
peri -3.18016003902744E-13 8.389023657732989E-13 3.092309485047275E-9 -2.33251351666747E-10 9.390394685349413E-10 -2.056600741696903E-11
i -3.375140977811505E-15 1.037650867136214E-14 5.584227250948632E-12 2.251342049968409E-11 -2.056600741696903E-11 2.743348088268286E-11

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 12.7   n/a MPO452549  
diameter diameter 12.141 km 2.871 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.122   0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

27142 (1998 XG61)          Discovered 1998-Dec-13 by Spacewatch at Kitt Peak
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 XG61 = 1948 XE = 1999 BR25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-30 07:37 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin