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 ]  
66861 (1999 VN31)
Classification: Main-belt Asteroid          SPK-ID: 2066861
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2908877420732368 5.6154e-08  
a 2.749418752031489 1.4295e-08 au
q 1.949646539239232 1.5933e-07 au
i 1.799558367743651 5.5419e-06 deg
node 210.1994927256148 0.00011236 deg
peri 168.2858244177639 0.00011249 deg
M 246.3704665870133 7.0826e-06 deg
tp 2459726.091683921004
(2022-May-26.59168392)
3.5654e-05 TDB
period 1665.174541585651
4.56
1.2986e-05
3.555e-08
d
yr
n .2161935526933967 1.6861e-09 deg/d
Q 3.549190964823745 1.8453e-08 au
  Orbit Determination Parameters
   # obs. used (total)      762  
   data-arc span      12666 days (34.68 yr)  
   first obs. used      1985-09-20  
   last obs. used      2020-05-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53379  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:25:24  

Additional Information
 Earth MOID = .950494 au 
 Jupiter MOID = 1.91718 au 
 T_jup = 3.283 
[ 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 15.39   n/a E2021B10  

66861 (1999 VN31)          Discovered 1999-Nov-03 by LINEAR at Socorro
Reference: 20030910/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
1910-Jul-28 17:06 00:02 Jupiter 1.90459262529499 1.90459220041796 1.90459305018652 0.982563792515122 0.275642744300142 2418881.212487326 2.40714270833092 10770.1030340983 1020.33689268079 0.770148391064213 1063727.79467171 T 22 CATAB v2.0f-lin.ifort 2021-Apr-13 12:25:28 2021-Apr-13 12:25
1969-Dec-18 07:05 00:01 Jupiter 1.90497434798516 1.90497392397362 1.90497477201165 0.998218510864669 0.327361790562671 2440573.795341796 1.07101628889006 6574.46486986282 795.157314320576 1.79147093831704 1082617.22393337 T 22 CATAB v2.0f-lin.ifort 2021-Apr-13 12:25:28 2021-Apr-13 12:25
2029-May-09 05:11 < 00:01 Jupiter 1.9054736077994 1.90547316920668 1.90547404640869 1.0141518059676 0.373446694923491 2462265.716177649 0.313502805791843 4668.8979699758 661.846533979032 3.40255444002234 1096410.68043942 T 22 CATAB v2.0f-lin.ifort 2021-Apr-13 12:25:28 2021-Apr-13 12:25
2088-Sep-27 15:12 00:02 Jupiter 1.90624553878641 1.90624505580451 1.9062460217891 1.03060456948512 0.416490507593022 2483957.133291815 1.61851287466697 3708.46774374512 581.070934528064 5.98198174007419 1119792.01503195 T 22 CATAB v2.0f-lin.ifort 2021-Apr-13 12:25:28 2021-Apr-13 12:25
2148-Feb-17 16:39 00:03 Jupiter 1.90734763222141 1.90734705826552 1.90734820620755 1.04766215925375 0.457633103447131 2505648.193791811 2.96603865774577 3221.2806753035 530.462477997039 9.61937477771095 1169663.04277543 T 22 CATAB v2.0f-lin.ifort 2021-Apr-13 12:25:28 2021-Apr-13 12:25

Alternate Designations
 1999 VN31 = 1985 SG4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-24 00:19 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin