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 ]  
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2144478214224486 7.0893e-08  
a 2.604334813884186 1.2825e-08 au
q 2.045840886792084 1.8305e-07 au
i 12.65346545531996 7.2443e-06 deg
node 246.098953047398 1.9998e-05 deg
peri 333.1299094291457 2.3031e-05 deg
M 97.07404076833004 9.2732e-06 deg
tp 2458586.553458334673
(2019-Apr-13.05345833)
3.9948e-05 TDB
period 1535.12467205481
4.20
1.1339e-05
3.104e-08
d
yr
n .2345086406031957 1.7322e-09 deg/d
Q 3.162828740976288 1.5575e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1590  
   data-arc span      11182 days (30.61 yr)  
   first obs. used      1989-02-05  
   last obs. used      2019-09-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40742  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 01:05:54  

Additional Information
 Earth MOID = 1.04477 au 
 Jupiter MOID = 1.87248 au 
 T_jup = 3.346 
[ 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 14.3   n/a MPO328910  
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

[ 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
1929-Jan-08 20:32 00:02 Jupiter 1.85841213674392 1.85841156633601 1.85841270715194 3.31662252159209 3.17622887503769 2425620.355898995 1.65330019509677 258.599660444264 26.8743573579338 -88.7554861522436 1683372.48399415 T 14 CATAB v2.0f-lin.ifort 2020-Jan-29 01:06:28 2020-Jan-29 01:06
2000-Aug-15 22:43 < 00:01 Jupiter 1.89499645925051 1.89499592776472 1.89499699073651 3.65749021506363 3.53316824410491 2451772.446519591 0.318626908169426 107.817809586923 21.3342076660332 -82.7552015534819 2062822.9205128 T 14 CATAB v2.0f-lin.ifort 2020-Jan-29 01:06:28 2020-Jan-29 01:06
2059-Feb-09 03:50 < 00:01 Jupiter 1.89994071775156 1.89993994193049 1.89994149357294 3.01016671451117 2.85822902878777 2473133.660037250 0.946978809335204 121.107884057072 37.5803893496125 -80.5405339482539 1452830.57105894 T 14 CATAB v2.0f-lin.ifort 2020-Jan-29 01:06:28 2020-Jan-29 01:06
2130-Sep-20 19:27 00:02 Jupiter 1.84937547847418 1.84937489879819 1.84937605815218 3.42680697073475 3.29044020944236 2499289.310382056 2.25023262068292 354.156082338487 25.7144603063935 -87.3634195626423 1747334.22255942 T 14 CATAB v2.0f-lin.ifort 2020-Jan-29 01:06:28 2020-Jan-29 01:06

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 2020-May-26 19:02 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin