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 ]  
19509 Niigata (1998 MG38)
Classification: Main-belt Asteroid          SPK-ID: 2019509
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2144591321993344 6.6437e-08  
a 2.603858450446469 1.2035e-08 au
q 2.045437226793816 1.6995e-07 au
i 12.6537624071613 5.1091e-06 deg
node 246.0951026027137 1.9922e-05 deg
peri 333.074229038747 2.1758e-05 deg
M 144.0599426578377 7.9717e-06 deg
tp 2458586.363059413957
(2019-Apr-12.86305941)
3.3641e-05 TDB
period 1534.703502805726
4.20
1.064e-05
2.913e-08
d
yr
n .234572996896047 1.6263e-09 deg/d
Q 3.162279674099123 1.4616e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1891  
   data-arc span      11641 days (31.87 yr)  
   first obs. used      1989-02-05  
   last obs. used      2020-12-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40176  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:56:04  

Additional Information
 Earth MOID = 1.04326 au 
 Jupiter MOID = 1.87196 au 
 T_jup = 3.347 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457690.5 (2016-Oct-29.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2137146758337068 6.6612e-08  
q 2.048826957009188 1.7041e-07 au
tp 2457050.398472769825
(2015-Jan-27.89847277)
3.537e-05 TDB
node 246.1176169857515 1.9913e-05 deg
peri 333.1788910780166 2.1757e-05 deg
i 12.6530114180885 5.1101e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1891  
   data-arc span      11641 days (31.87 yr)  
   first obs. used      1989-02-05  
   last obs. used      2020-12-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40176  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:56:04  

Additional Information
 Jupiter MOID = 1.87196 au 
 T_jup = 3.347 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.437140681845856E-15 -1.133578818290722E-14 -5.054516555771612E-13 3.018615323117306E-14 -2.765672312545762E-13 5.432386583999678E-15
q -1.133578818290722E-14 2.903969910711587E-14 1.216466400215986E-12 -7.879654631587094E-14 7.003846820897004E-13 -1.354432952266414E-14
tp -5.054516555771612E-13 1.216466400215986E-12 1.2510446161013E-9 -5.094211250042811E-12 3.177317171784425E-10 -2.807858312706919E-12
node 3.018615323117306E-14 -7.879654631587094E-14 -5.094211250042811E-12 3.965285166223157E-10 -3.886179854602548E-10 -4.194695157467936E-11
peri -2.765672312545762E-13 7.003846820897004E-13 3.177317171784425E-10 -3.886179854602548E-10 4.733833103827959E-10 4.007615841079244E-11
i 5.432386583999678E-15 -1.354432952266414E-14 -2.807858312706919E-12 -4.194695157467936E-11 4.007615841079244E-11 2.61131330153379E-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 14.51   n/a E2021B10  
diameter diameter 7.520 km 0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19509 Niigata           Discovered 1998 June 29 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Niigata prefecture is located on the island of Honshu, Japan. The Asteroids, Comets, Meteors 2012 meeting is to be held at Toki Messe in Niigata city, capital of the prefecture. Niigata is known for high quality rice and sake.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120506/MPCPages.arcLast Updated: 2012-05-09

[ show close-approach data ]
Alternate Designations
 1998 MG38 = 1989 CW3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-18 02:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin