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 ]  
101558 (1999 AE8)
Classification: Main-belt Asteroid          SPK-ID: 2101558
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03589159986368012 4.868e-08  
a 2.514371142251477 1.1147e-08 au
q 2.424126339305003 1.1795e-07 au
i 11.55077607339766 5.0151e-06 deg
node 338.6094278298035 1.7238e-05 deg
peri 213.6992283837864 6.3382e-05 deg
M 126.310823788012 6.0608e-05 deg
tp 2458689.547452184381
(2019-Jul-25.04745218)
0.00024511 TDB
period 1456.272009771191
3.99
9.684e-06
2.651e-08
d
yr
n .2472065641476987 1.6439e-09 deg/d
Q 2.604615945197952 1.1547e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1838  
   data-arc span      7948 days (21.76 yr)  
   first obs. used      1999-01-13  
   last obs. used      2020-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4963  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:59:52  

Additional Information
 Earth MOID = 1.43344 au 
 Jupiter MOID = 2.38112 au 
 T_jup = 3.431 
[ 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 14.02   n/a E2021B55  
diameter diameter 9.405 km 0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101558 (1999 AE8)          Discovered 1999-Jan-13 by Kobayashi, T. at Oizumi
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
1925-Apr-09 22:26 00:02 Amphi 0.0426490208162913 0.0426307246910406 0.042667317030813 2.97841775563888 2.97841771038265 2424250.434823755 2.17170305011898 916.952728017813 66.4888482335673 -6.18135607685738 12421.6740890586 T 29 CATAB v2.0f-lin.ifort 2020-Nov-12 19:59:55 2020-Nov-12 19:59
2092-Aug-19 16:44 00:01 Amphi 0.0260695573843177 0.0260500663151756 0.0260890489990605 2.62236225181872 2.62236216772826 2485379.197325611 1.34574746906302 988.707018847101 74.5993615856325 -10.9816521336756 10671.2317260366 T 29 CATAB v2.0f-lin.ifort 2020-Nov-12 19:59:55 2020-Nov-12 19:59

Alternate Designations
 1999 AE8 = 2001 QB137 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-07 22:15 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin