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 ]  
21594 (1998 VP31)
Classification: Main-belt Asteroid          SPK-ID: 2021594
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2138810055919765 2.1704e-08  
a 2.739030418363445 9.8875e-09 au
q 2.15320383813686 5.8753e-08 au
i 8.231589213629375 3.7765e-07 deg
node 242.8877276190594 6.3573e-06 deg
peri 351.3483680271695 9.75e-06 deg
M 107.9796891763896 5.2158e-06 deg
tp 2458703.869620772391
(2019-Aug-08.36962077)
2.2658e-05 TDB
period 1655.745982282677
4.53
8.9655e-06
2.455e-08
d
yr
n .2174246556248258 1.1773e-09 deg/d
Q 3.324856998590031 1.2002e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2198  
   data-arc span      12409 days (33.97 yr)  
   first obs. used      1987-02-22  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46661  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:49:40  

Additional Information
 Earth MOID = 1.1409 au 
 Jupiter MOID = 1.69003 au 
 T_jup = 3.303 
[ 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 13.33   n/a MPCxxxxx  
diameter diameter 9.825 km 0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.5865 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Albers, K.; Kragh, K.; Monnier, A.; Pligge, Z.; et al. (2010) Minor Planet Bull. 37, 152-158.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.118   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21594 (1998 VP31)          Discovered 1998-Nov-13 by Korlevic, K. at Visnjan
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ 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
1917-Sep-03 15:30 00:02 Jupiter 1.70764127695205 1.70764072578719 1.70764182812292 2.44032764120447 2.22781529869959 2421475.146105885 1.50157068983919 182.255130101724 6.72138807476139 84.7961111816955 8801584.91595758 T 35 CATAB v2.0f-lin.ifort 2021-Apr-13 03:50:33 2021-Apr-13 03:50
1976-Apr-16 14:55 < 00:01 Jupiter 1.70945543297867 1.70945514786591 1.70945571809163 2.1725058454878 1.93100918061754 2442885.121450394 0.632809119305959 69.7848259267032 9.20114650069984 -78.3168252724323 9011141.43576639 T 35 CATAB v2.0f-lin.ifort 2021-Apr-13 03:50:33 2021-Apr-13 03:50
2013-Feb-08 12:12 < 00:01 Jupiter 1.83968764008822 1.83968745829723 1.83968782187922 2.62038272935698 2.4383545034345 2456332.008088925 0.148636912258501 29.858282029444 7.06117668971653 -89.2743661750593 12275568.7076485 T 35 CATAB v2.0f-lin.ifort 2021-Apr-13 03:50:33 2021-Apr-13 03:50
2034-Nov-09 11:21 < 00:01 Jupiter 1.92682017558597 1.92681980899089 1.92682054218093 2.07981866782552 1.85646266301896 2464275.972819466 0.355251410042626 18.8229895277776 9.1091046514328 -72.0556822305119 5900895.63613595 T 35 CATAB v2.0f-lin.ifort 2021-Apr-13 03:50:33 2021-Apr-13 03:50
2071-Sep-22 14:30 < 00:01 Jupiter 1.67751451945207 1.67751434236741 1.67751469653683 2.40253980435571 2.18227939268548 2477742.104157437 0.857108867696168 116.813172015755 5.59985477504688 -89.0563115834694 9940950.62559078 T 35 CATAB v2.0f-lin.ifort 2021-Apr-13 03:50:33 2021-Apr-13 03:50
2130-May-07 16:04 00:02 Jupiter 1.74985214603497 1.74985119710428 1.74985309496925 2.18917717816884 1.95560456047761 2499153.169371323 1.85913473664071 151.185589689961 11.957861160821 -68.3841762712935 7084830.73076355 T 35 CATAB v2.0f-lin.ifort 2021-Apr-13 03:50:33 2021-Apr-13 03:50
2167-Mar-02 07:23 00:02 Jupiter 1.77082637114278 1.77082513614542 1.77082760614708 2.54007216587218 2.3442110949481 2512600.807734459 2.3725022146576 198.22384438569 11.6597198764973 74.2244622397257 7307808.79476135 T 35 CATAB v2.0f-lin.ifort 2021-Apr-13 03:50:33 2021-Apr-13 03:50

Alternate Designations
 1998 VP31 = 1987 DO1 = 1999 XU214 
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-14 21:02 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin