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 ]  
180712 (2004 HL78)
Classification: Main-belt Asteroid          SPK-ID: 2180712
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06200561145150699 5.0372e-08  
a 2.709594021846791 1.9302e-08 au
q 2.541583987736833 1.3635e-07 au
i 4.404515191141701 5.1424e-06 deg
node 249.486713836402 7.4009e-05 deg
peri 164.091547253847 8.7875e-05 deg
M 78.72512027182505 4.5831e-05 deg
tp 2458844.241202978460
(2019-Dec-26.74120298)
0.00020734 TDB
period 1629.126338390049
4.46
1.7408e-05
4.766e-08
d
yr
n .2209773370650693 2.3612e-09 deg/d
Q 2.87760405595675 2.0499e-08 au
  Orbit Determination Parameters
   # obs. used (total)      265  
   data-arc span      7045 days (19.29 yr)  
   first obs. used      2001-09-28  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58891  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 11:43:56  

Additional Information
 Earth MOID = 1.55232 au 
 Jupiter MOID = 2.35681 au 
 T_jup = 3.357 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO454243  
diameter diameter 2.616 km 0.297 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.071   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

180712 (2004 HL78)          Discovered 2004-Apr-21 by Spacewatch at Kitt Peak
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

Alternate Designations
 2004 HL78 = 2001 TA220 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-12 15:39 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin