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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
136874 (1998 FH74)
Classification: Apollo [NEO]          SPK-ID: 2136874
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 120 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8841441241880856 3.3452e-08  
a 2.202069232701324 1.6318e-08 au
q .2551226595530821 7.4269e-08 au
i 21.1680864075965 1.2359e-05 deg
node 197.5749925337167 1.3531e-05 deg
peri 193.3771166129741 1.348e-05 deg
M 211.6968519979139 1.895e-05 deg
tp 2459092.191555271225
(2020-Aug-30.69155527)
6.8091e-05 TDB
period 1193.561716539902
3.27
1.3267e-05
3.632e-08
d
yr
n .30161825317557 3.3526e-09 deg/d
Q 4.149015805849565 3.0746e-08 au
  Orbit Determination Parameters
   # obs. used (total)      528  
   data-arc span      8768 days (24.01 yr)  
   first obs. used      1995-05-04  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59949  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-08 07:35:59  

Additional Information
 Earth MOID = .235827 au 
 Jupiter MOID = 1.33032 au 
 T_jup = 2.930 
[ 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 15.6   n/a MPO439844  
diameter diameter 3.398 km 0.129 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  
geometric albedo albedo 0.073   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  

136874 (1998 FH74)          Discovered 1998-Mar-31 by LINEAR at Socorro
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ show close-approach data ]
Alternate Designations
 1998 FH74 = 2001 FM31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin