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 ]  
74900 (1999 TO124)
Classification: Main-belt Asteroid          SPK-ID: 2074900
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1054822056399147 4.2336e-08  
a 2.434943521057426 1.2659e-08 au
q 2.178100307847668 1.0417e-07 au
i 9.564492456096422 5.157e-06 deg
node 323.3876822189505 2.464e-05 deg
peri 246.8169442889098 3.2857e-05 deg
M 309.8264381129603 2.3374e-05 deg
tp 2459193.921255313956
(2020-Dec-10.42125531)
9.0461e-05 TDB
period 1387.815600371209
3.80
1.0822e-05
2.963e-08
d
yr
n .2594004563024858 2.0228e-09 deg/d
Q 2.691786734267183 1.3994e-08 au
  Orbit Determination Parameters
   # obs. used (total)      830  
   data-arc span      9946 days (27.23 yr)  
   first obs. used      1993-01-25  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54721  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:09:15  

Additional Information
 Earth MOID = 1.19488 au 
 Jupiter MOID = 2.34126 au 
 T_jup = 3.479 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457133.5 (2015-Apr-21.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1060651511569291 4.2243e-08  
q 2.17627620857936 1.0394e-07 au
tp 2457806.819099451727
(2017-Feb-22.31909945)
8.8193e-05 TDB
node 323.434156348968 2.4624e-05 deg
peri 246.9901954922514 3.2806e-05 deg
i 9.568653482866541 5.159e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      830  
   data-arc span      9946 days (27.23 yr)  
   first obs. used      1993-01-25  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54721  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:09:15  

Additional Information
 Jupiter MOID = 2.34126 au 
 T_jup = 3.479 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.784451016358723E-15 -4.365026331095855E-15 -8.496744451609647E-13 -1.197619072164309E-14 -2.272558742788228E-13 -2.444540392437342E-15
q -4.365026331095855E-15 1.080420007007647E-14 2.188248228022487E-12 3.009476105970416E-14 5.66495160807636E-13 6.520510036173792E-15
tp -8.496744451609647E-13 2.188248228022487E-12 7.778084826366338E-9 1.691542834624092E-11 1.922529032101377E-9 -3.649934983122407E-12
node -1.197619072164309E-14 3.009476105970416E-14 1.691542834624092E-11 6.063287761444983E-10 -5.931036811747589E-10 2.992061090244532E-11
peri -2.272558742788228E-13 5.66495160807636E-13 1.922529032101377E-9 -5.931036811747589E-10 1.076246877695816E-9 -3.039230270511143E-11
i -2.444540392437342E-15 6.520510036173792E-15 -3.649934983122407E-12 2.992061090244532E-11 -3.039230270511143E-11 2.661571015783745E-11

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 15.2   n/a MPO453162  
diameter diameter 2.302 km 0.341 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.277   0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74900 (1999 TO124)          Discovered 1999-Oct-04 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-08 16:28 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin