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 ]  
162082 (1998 HL1)
Classification: Apollo [NEO, PHA]          SPK-ID: 2162082
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 153 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1870168602831163 8.6222e-09  
a 1.246296531466364 2.1484e-09 au
q 1.013218067169787 9.8468e-09 au
i 20.0518090181891 3.8875e-06 deg
node 213.5391082775043 8.0716e-07 deg
peri 148.6506952305535 6.3016e-06 deg
M 95.32906108720972 3.4915e-06 deg
tp 2459261.928429372369
(2021-Feb-16.42842937)
4.9912e-06 TDB
period 508.1951387481681
1.39
1.3141e-06
3.598e-09
d
yr
n .7083893027524512 1.8317e-09 deg/d
Q 1.479374995762941 2.5502e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1394  
   # delay obs. used      3  
   # Doppler obs. used      1  
   data-arc span      7977 days (21.84 yr)  
   first obs. used      1998-04-18  
   last obs. used      2020-02-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36611  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-03 06:41:08  

Additional Information
 Earth MOID = .041496 au 
 Jupiter MOID = 3.92573 au 
 T_jup = 5.078 
[ 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 19.1   n/a E2021-HD6  
rotation period rot_per 11.7864 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2019) http://www.asu.cas.cz/~ppravec/neo.htm]
[Franco, L.; Marchini, A.; Scarfi, G.; Bacci, P.; et al. (2020) Minor Planet Bull. 47, 144-147.]
[Warner, B.D.; Stephens, R.D. (2020) Minor Planet Bull. 47, 105-120.]

162082 (1998 HL1)          Discovered 1998-Apr-18 by LINEAR at Socorro
Reference: 20070926/Numbers.arcLast Updated: 2007-09-30

[ 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 2021-Aug-01 20:06 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin