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 ]  
102993 (1999 XL91)
Classification: Main-belt Asteroid          SPK-ID: 2102993
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1388948325978032 3.082e-08  
a 2.247982718336177 7.4341e-09 au
q 1.935749534990119 7.1055e-08 au
i 5.283499504598309 3.5579e-06 deg
node 86.55260090885669 3.9708e-05 deg
peri 12.88623103225036 4.2867e-05 deg
M 83.40753486391652 1.4421e-05 deg
tp 2458915.272980278847
(2020-Mar-06.77298028)
4.954e-05 TDB
period 1231.084544905268
3.37
6.1068e-06
1.672e-08
d
yr
n .2924250828180952 1.4506e-09 deg/d
Q 2.560215901682235 8.4667e-09 au
  Orbit Determination Parameters
   # obs. used (total)      956  
   data-arc span      7758 days (21.24 yr)  
   first obs. used      1999-11-16  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49178  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:44:35  

Additional Information
 Earth MOID = .952808 au 
 Jupiter MOID = 2.58101 au 
 T_jup = 3.611 
[ 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 15.99   n/a E2021B55  
diameter diameter 4.159 km 0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

102993 (1999 XL91)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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
1922-Apr-19 20:15 < 00:01 Iris 0.0227661055030541 0.0227569473152919 0.0227752699710465 5.76707560132419 5.76707555753886 2423164.343698859 0.3141399655363 752.173843281858 32.5190168156546 -52.6818636560458 83311.5160068796 T 26 CATAB v2.0f-lin.ifort 2021-Apr-13 15:44:38 2021-Apr-13 15:44

Alternate Designations
 1999 XL91 = 2002 TO85 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-23 13:01 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin