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 ]  
101733 (1999 ER12)
Classification: Main-belt Asteroid          SPK-ID: 2101733
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1855496607628356 3.0928e-08  
a 2.599878633012075 1.3302e-08 au
q 2.11747203463214 7.9419e-08 au
i 11.84157826214692 8.7474e-06 deg
node 20.16039254993803 1.7114e-05 deg
peri 82.58996298854628 3.3348e-05 deg
M 70.45735698382934 2.5745e-05 deg
tp 2458700.824053228155
(2019-Aug-05.32405323)
0.00010895 TDB
period 1531.186315470566
4.19
1.1751e-05
3.217e-08
d
yr
n .2351118190926127 1.8043e-09 deg/d
Q 3.08228523139201 1.577e-08 au
  Orbit Determination Parameters
   # obs. used (total)      971  
   data-arc span      7768 days (21.27 yr)  
   first obs. used      1999-02-18  
   last obs. used      2020-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50259  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:58:48  

Additional Information
 Earth MOID = 1.17195 au 
 Jupiter MOID = 2.18875 au 
 T_jup = 3.361 
[ 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 15.3   n/a MPO459476  
diameter diameter 7.753 km 0.525 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.029   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

101733 (1999 ER12)          Discovered 1999-Mar-15 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
2066-Nov-12 17:02 00:02 Amphi 0.0461312074019645 0.0461178354856126 0.0461445798004881 3.57936130943852 3.57936127462302 2475967.209833947 1.57684910152394 707.215915415684 73.1402165501692 -19.6564085943143 33020.2552471728 T 23 CATAB v2.0f-lin.ifort 2020-Nov-12 19:58:50 2020-Nov-12 19:58
2145-Mar-02 23:09 00:03 Eunom 0.0231010092840882 0.0230675430343264 0.0231344986078714 7.36109715647028 7.36109707391965 2504566.464655132 2.56443940341217 2027.64386159203 53.4349684746557 34.6193167741541 36755.983907987 T 23 CATAB v2.0f-lin.ifort 2020-Nov-12 19:58:50 2020-Nov-12 19:58

Alternate Designations
 1999 ER12 = 2003 AA78 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-15 16:02 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin