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JPL Small-Body Database Browser
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91991 (1999 VH116)
Classification: Main-belt Asteroid          SPK-ID: 2091991
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03994106883174957 5.4088e-08  
a 3.09826628424289 3.5794e-08 au
q 2.974518217324856 1.7249e-07 au
i 5.206718802731698 5.9626e-06 deg
node 208.5994656390741 6.9147e-05 deg
peri 229.1353304362185 0.00010548 deg
M 254.2917807983659 7.972e-05 deg
tp 2459585.401579556043
(2022-Jan-05.90157956)
0.00044161 TDB
period 1991.941310055866
5.45
3.4519e-05
9.451e-08
d
yr
n .180728216329779 3.1319e-09 deg/d
Q 3.222014351160924 3.7223e-08 au
  Orbit Determination Parameters
   # obs. used (total)      436  
   data-arc span      6745 days (18.47 yr)  
   first obs. used      1999-11-04  
   last obs. used      2018-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53931  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 05:03:13  

Additional Information
 Earth MOID = 1.99268 au 
 Jupiter MOID = 1.90825 au 
 T_jup = 3.215 
[ 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 15.0   n/a MPO432457  

91991 (1999 VH116)          Discovered 1999-Nov-04 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ 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
1928-Jul-21 23:28 00:04 Jupiter 1.98734677858721 1.98734590276167 1.9873476544201 4.20887546832086 4.10636302480978 2425449.477454668 4.25006613469228 245.825819690306 23.0683857121928 82.9689374356918 2966895.78201864 T 18 CATAB v2.0e-lin.ifort 2018-May-07 05:03:16 2018-Dec-17 17:37
1938-Jul-29 13:01 00:04 Jupiter 1.95143062654205 1.95143003498158 1.95143121810331 3.34889954984112 3.2166790392745 2429109.042056464 3.92588660955075 179.503354806985 20.3459840785247 -84.8565698955863 2616608.96660208 T 18 CATAB v2.0e-lin.ifort 2018-May-07 05:03:16 2018-Dec-17 17:37
1999-Mar-17 09:17 < 00:01 Jupiter 1.95027664278954 1.95027610184365 1.95027718373532 3.92638226675408 3.81416568753662 2451254.886713034 0.768552526140744 66.057428391992 22.8486199004916 88.5764620590409 2802934.41327577 T 18 CATAB v2.0e-lin.ifort 2018-May-07 05:03:16 2018-Dec-17 17:37
2009-Mar-16 02:29 < 00:01 Jupiter 1.96868791813962 1.96868734757246 1.96868848870678 3.24661692445569 3.11127417660186 2454906.603349531 0.350053369123229 53.9559596693805 19.2048278476554 -78.7816300810455 2627488.53752545 T 18 CATAB v2.0e-lin.ifort 2018-May-07 05:03:16 2018-Dec-17 17:37
2069-Nov-05 22:12 00:03 Jupiter 1.92927772239796 1.92927717887375 1.92927826592218 3.63393972260491 3.51104624872045 2477056.425331084 2.90087403916924 164.958572696553 21.6667611219298 -87.0483227231251 2653117.91087516 T 18 CATAB v2.0e-lin.ifort 2018-May-07 05:03:16 2018-Dec-17 17:37
2130-Jun-15 20:20 00:06 Jupiter 1.99256757149524 1.99256646210166 1.99256868090423 4.24744646343809 4.14615719499322 2499192.347404782 5.81122621939826 321.69237910726 22.6441878658409 82.1582474328559 3001800.4788369 T 18 CATAB v2.0e-lin.ifort 2018-May-07 05:03:16 2018-Dec-17 17:37
2140-Jun-25 13:24 00:07 Jupiter 1.93048665829508 1.93048597081816 1.93048734577957 3.39067440901345 3.25870383426893 2502855.058646352 6.6207744691962 322.605711502917 20.5047208221106 -84.3755646324143 2578064.66629723 T 18 CATAB v2.0e-lin.ifort 2018-May-07 05:03:16 2018-Dec-17 17:37
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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